FILED
                                                                         United States Court of Appeals
                      UNITED STATES COURT OF APPEALS                             Tenth Circuit

                             FOR THE TENTH CIRCUIT                           November 16, 2016
                         _________________________________
                                                                             Elisabeth A. Shumaker
                                                                                 Clerk of Court
UNITED STATES OF AMERICA,

      Plaintiff - Appellee,

v.                                                            No. 15-3305
                                                    (D.C. No. 5:11-CR-40078-JAR-2)
MARCUS D. ROBERSON,                                             (D. Kan.)

      Defendant - Appellant.
                      _________________________________

                             ORDER AND JUDGMENT*
                         _________________________________

Before LUCERO, HOLMES, and MORITZ, Circuit Judges.
                  _________________________________

       Marcus D. Roberson appeals his convictions and life sentence for conspiracy to

distribute 280 grams or more of crack cocaine (Count I), conspiracy to distribute five

kilograms or more of powder cocaine (Count II), and murder to prevent a person from

providing information to a law enforcement officer (Count III). Roberson argues that

(1) the jury instruction on the murder count failed to specify that he intended to prevent a

communication with a federal law enforcement officer; (2) the prosecution failed to

disclose one of its witness’s involvement in a prior shooting; (3) there was insufficient

       *
        After examining the briefs and appellate record, this panel has determined
unanimously to honor the parties’ request for a decision on the briefs without oral
argument. See Fed. R. App. P. 34(f); 10th Cir. R. 34.1(G). The case is therefore
submitted without oral argument. This order and judgment is not binding precedent,
except under the doctrines of law of the case, res judicata, and collateral estoppel. It
may be cited, however, for its persuasive value consistent with Fed. R. App. P. 32.1
and 10th Cir. R. 32.1.
evidence to support the jury’s verdicts; and (4) the finality of his prior drug convictions

was not determined by the jury. Exercising jurisdiction under 18 U.S.C. § 3742(a) and

28 U.S.C. § 1291, we affirm.

                                      BACKGROUND

       Virok Webb ran a “well-structured” drug distribution organization in Junction

City, Kansas. R., Vol. I at 886. Its members included Webb; Roberson; Antonio Cooper;

Jamaica Chism; Alisha Escobedo; Crystal Fisher; Jermaine Jackson; and others.

       Law enforcement officers considered Roberson to be “second in charge.” 

Roberson had several roles. In addition to selling cocaine, he would sometimes

convert the organization’s powder cocaine into crack cocaine. He would then give it to

others, such as Jackson, to sell. Jackson testified that during the period of May 2009 to

February 2011, Roberson supplied him with thirty-six ounces of crack cocaine. Roberson

would also occasionally direct another member to pick up powder cocaine from a

supplier in Wichita, Kansas, and bring it directly to him.

       Cooper began distributing drugs for the organization in the summer of 2009. He

testified that during a seven-month period in 2010, he obtained on a weekly basis roughly

“2¼ to 4½ ounces,” 

of crack and powder cocaine from Webb to sell, 

and that Roberson was present when Webb was handing it out, 

       Chism had children with both Webb and Roberson. She testified that the

organization distributed crack and powder cocaine on a daily basis and that she regularly

interacted with the organization’s members to further their distribution activities.



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       Escobedo’s primary role in the organization was as a driver for Webb, Roberson,

and Chism. She testified that “three to five times a week,” she would meet with

Roberson to transport drugs. 

       Fisher was “the number three person in [Webb’s] organization.” 

She sold drugs and would travel to Wichita to “pick up larger amounts of cocaine.” 

On March 2, 2010, police met with Fisher to recruit her as a confidential informant.

Webb evidently learned of that meeting.

       Toward the evening, Webb got together with Roberson, Chism, and Escobedo to

discuss “the[ ] need[ ] to move the drugs . . . because . . . [Fisher] was an informant.” 

Roberson handed Chism a gun and told her to clean it. Afterward, Roberson

asked Chism if Webb had told her what he (Roberson) “ha[d] to do?” 

After she said “[n]o,” 

Roberson “said that he needed [her] and [Escobedo] to

come pick him up” from an alley, 

in fifteen or twenty minutes, 

       Chism and Escobedo drove to the alley around midnight, looking for Roberson.

He ran up to the car, and got into the back seat. “[O]ut of breath” and nervous, he

exclaimed, “Rat bitch,” and he directed them to “Go, go, get me out of here.” 

As Escobedo was driving, she could see Roberson “wiping something . . . with the edge

of his sweater.” 

When they pulled over, Roberson tried to hand the object to

Chism, telling her to “drop [it] off in the lake,” she refused and then exited the vehicle

with Escobedo and walked home. 

                                              3
       Not far from where Chism and Escobedo picked up Roberson, police found Fisher

shot to death in her car. Shell casings from the scene were consistent with a .40 caliber

handgun.

       Meanwhile, Roberson’s wife drove to his location and picked him up. They

headed to a Wal-Mart store. Along the way, Roberson began “[t]o throw clothes out the

window” and change into clothes brought by his wife. 

After they parked

at the store, as they were entering, they walked “right by” Webb, 

who had

gone to the store to “be seen on the cameras,” 

Roberson and his wife bought

several items and returned home.

       On the night of Fisher’s murder, Cooper spoke with Webb. “[Webb] told [him]

that [Fisher] was killed that night and that [Roberson] killed her.” 

Several

days later, Cooper spoke with Roberson, who admitted “he had killed [Fisher]” and “he

had [Webb] go to Wal-Mart [to be seen on the security cameras] because . . . he didn’t

want nothing to happen to [Webb].” 

       Raschon Smith was Roberson’s friend and one of Webb’s former customers.

Smith encountered Webb one evening at a local bar in the fall of 2010. While attempting

to recruit Smith into the organization, Webb said that he was working with Roberson and

that “what happened to [Fisher] . . . was some of their work,” 

Roberson later

spoke with Smith, asking him to “get on the team so we could get rid of some of these

rats around here.” 

Roberson further told him that he had “put some work in

on [Fisher] and that . . . he had to do that for the team,” meaning “[k]illing her.” 

Roberson explained he was concerned she might “bring the organization or the

                                              4
team down.” 

Roberson also admitted throwing the murder weapon “in the

lake.” 

       Barbara Shaw frequently bought crack cocaine from Roberson. Once, when

Roberson suspected she might be cooperating with police, he warned her: “Look what I

did to [Fisher]” and “Look what happened to her.” 

       In October 2011, Webb, Roberson, and other members of the organization were

indicted on drug-conspiracy and murder charges. Roberson was convicted as charged

and the jury found by special verdict that he had conspired to distribute 280 grams or

more of crack cocaine and 5 kilograms or more of powder cocaine.

       Roberson moved for a new trial, arguing insufficiency of the evidence and

challenging the jury instruction for murder to prevent a person from providing

information to a law enforcement officer. He later supplemented the motion to raise the

government’s failure to disclose Cooper’s involvement in a 2001 shooting. The district

court denied the motion.

       At sentencing, Roberson sought to avoid mandatory life sentences on counts one

and two on the basis that the finality of two prior drug convictions was not submitted to

the jury and proven beyond a reasonable doubt. The district court rejected the argument

and imposed three concurrent life sentences.

       Roberson now appeals.




                                             5
                                        DISCUSSION

                               I. Jury Instruction for Murder

       Roberson challenges the jury instruction for murder to prevent communication

with a law enforcement officer. That instruction is based on the federal witness

tampering statute, 18 U.S.C. § 1512(a)(1)(C). The statute criminalizes “kill[ing] another

person, with intent to . . . prevent the communication by any person to a law enforcement

officer . . . of the United States of information relating to the commission or possible

commission of a Federal offense.” 

court’s § 1512(a)(1)(C) instruction required the jury to find that

Roberson killed Fisher “with the intent to prevent her from communicating with law

enforcement officers about the commission or possible commission of federal offenses,

namely, the distribution of cocaine and cocaine base . . . and conspiracy to distribute”

those substances. R., Vol. I at 181. Roberson argues the instruction is deficient because

it failed to describe “law enforcement officers” as “federal law enforcement officers.”

According to Roberson, omission of the word “federal” left “open the probability that the

jury would convict solely on the basis that the information was transmitted solely to local

law enforcement personnel.” Aplt. Opening Br. at 19-20.

       “We review de novo whether jury instructions, as a whole, correctly state the law

and provide the jury with an understanding of the issues.” United States v. Little,

, 1181 (10th Cir. 2016). We will reverse “only if we have substantial

doubt that the jury was fairly guided.” 

marks omitted).



                                              6
       We have no doubt that the trial court’s instruction fairly guided the jury under

§ 1512(a)(1)(C). The Supreme Court has explained that, in a case such as this one, where

the defendant kills without

       particular federal law enforcement officers in mind[,] the Government must
       show a reasonable likelihood that, had, e.g., the victim communicated with
       law enforcement officers, at least one relevant communication would have
       been made to a federal law enforcement officer. That is to say, where the
       defendant kills a person with an intent to prevent communication with law
       enforcement officers generally, that intent includes an intent to prevent
       communications with federal law enforcement officers only if it is
       reasonably likely under the circumstances that (in the absence of the
       killing) at least one of the relevant communications would have been made
       to a federal officer.
             . . . [T]he Government must show that the likelihood of
       communication to a federal officer was more than remote, outlandish, or
       simply hypothetical.
Fowler v. United States, 

, 677-78 (2011). The trial court’s instruction

utilized this very same language.1 Consequently, the instruction explained the requisite


1
       The jury instruction concluded with Fowler’s language:

               [Y]ou must find that the government has proved a reasonable
       likelihood that had Crystal K. Fisher communicated with law enforcement
       officers, at least one relevant communication would have been made to a
       federal law enforcement officer. That is to say, if you find that the
       defendant killed Crystal K. Fisher with the intent to prevent communication
       with law enforcement officers generally, that intent includes an intent to
       prevent communications with federal law enforcement officers only if it is
       reasonably likely under the circumstances that (in the absence of the
       killing) at least one of the relevant communications would have been made
       to a federal officer.
             To that end, the Government must show that the likelihood of
       communication to a federal officer was more than remote, outlandish, or
       simply hypothetical.
R., Vol. I at 182 (emphasis in original).
                                             7
federal nexus where, as here, “the defendant did not have federal law enforcement

officers (or any specific individuals) particularly in mind.” 

We therefore

reject Roberson’s contention that the jury was able to convict him under § 1512(a)(1)(C)

only as to potential communications with local law enforcement officers. See United

States v. Almaraz, 

, 1037 (10th Cir. 2002) (“We presume jurors attend

closely to the language of the instructions in a criminal case and follow the instructions

given them.”).

                                  II. Brady v. Maryland2

       Roberson argues the prosecution violated Brady by not disclosing Cooper’s

involvement in a shooting that occurred thirteen years before trial. Apparently, in

January 2001, Cooper was in a Riley County, Kansas parking lot observing a drug deal.

The buyer and his friends became aggressive when the seller, Anthony Mitchell, decided

to “scratch the deal.” Mitchell v. State, No. 92,223, 

, at *1 (Kan. Ct.

App. May 13, 2005) (per curiam) (internal quotation marks omitted). After Mitchell was

hit with a board, his associate, Private Jeremy Ware, grabbed a gun and either gave it

directly to Mitchell, see 

it to Cooper, who then gave it to Mitchell, see

United States v. Ware, No. 20010923, 

, at *1 (A. Ct. Crim. App. Mar.

10, 2005). Mitchell fired at his attackers, killing one and wounding another. Mitchell,

, at *1; Ware, 

, at *1. Mitchell and Ware were

prosecuted by State and military authorities, respectively. Cooper was not charged.

Roberson asserts these facts show “that one of the government’s star witness[es] . . . had

       2
           

(1963).
                                              8
been involved in a similar homicide” and “would have provided the defense with

substantial evidence to undermine not only Mr. Cooper’s testimony, but also the

testimony of the other, similarly situated cooperating witnesses.” Aplt. Opening Br. at

29.

       To establish a Brady violation, Roberson must prove that the government

suppressed evidence of the shooting that was in its possession or control, that the

evidence was favorable to Roberson as exculpatory or impeachment evidence, and that

the evidence was material. See United States v. Erickson, 

, 1163 (10th Cir.

2009). Our review is de novo. See 

ordinarily review a district court’s

denial of a motion for a new trial for an abuse of discretion, when the motion is based on

an alleged Brady violation, we review the district court’s decision de novo.” (internal

quotation marks omitted)).

       Preliminarily, Roberson must show that the evidence of Cooper’s involvement in

the 2001 shooting was in the possession or control of the government. To meet that

burden, Roberson speculates that the law enforcement agencies involved in his case—the

Drug Enforcement Agency and the Junction City Police Department—“would have been

aware of the relevance of the information related to Mr. Cooper’s prior criminal

activities” because a Riley County detective assisted in interviewing Fisher. Aplt. Reply

Br. at 6. But Roberson does not explain how Fisher’s interview, which occurred in 2010,

would have revealed any information about Cooper’s activities in 2001. Speculation that

the government “should or could have learned of” purported Brady evidence is

insufficient to show the evidence was in the government’s possession or control. See

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United States v. Hoyle, 

, 1172 (10th Cir. 2014) (internal quotation marks

omitted).

      Further, it is questionable whether the evidence would have been favorable to

Roberson at all. The evidence is clearly not exculpatory and it bears no resemblance to

Fisher’s murder. It is even unclear whether Cooper had any involvement, given that the

opinion of the Kansas Court of Appeals does not mention him.

      Nevertheless, Roberson suggests that evidence showing Cooper “had also been

involved in providing a weapon used in a drug homicide on at least a prior occasion”

would have undermined “his inherent attempts to limit his involvement in the instant

offense.” Aplt. Opening Br. at 28. But Cooper admitted on direct examination that he

had procured “a Glock 40” for Webb “weeks” before Crystal Fisher’s murder. R., Vol. I

at 1315, 1317. Thus, there would have been little impeachment value in showing the jury

that Cooper may have procured a gun for someone other than Webb years earlier.3

      And as to materiality, Roberson has not shown “that the likelihood of [achieving]

a different result [through admission of the evidence] is great enough to undermine

confidence in the outcome of the trial.” Smith v. Cain, 

, 630 (2012)

(alteration and internal quotation marks omitted). Indeed, evidence that only

“insignificantly impact[s] the degree of impeachment” will generally not satisfy the

materiality standard. Douglas v. Workman, 

, 1174 (10th Cir. 2009). Here,

      3
        Our discussion presupposes that evidence of the 2001 shooting would have
been admissible. We need not resolve this point here, and merely note that the
Federal Rules of Evidence generally “do not permit the introduction of evidence
regarding collateral matters solely for the purpose of impeaching the credibility of a
witness.” United States v. Velarde, 

, 561 (10th Cir. 2007).
                                           10
Cooper was impeached with evidence showing that he had been a drug dealer for twenty

years; had been convicted of being a felon in possession of a firearm and was hoping to

get a sentence reduction for his testimony; smoked marijuana daily; and had waited

several years to tell police he had handled the murder weapon and that Roberson had

confessed to him. The evidence of Cooper’s involvement in the 2001 shooting—which

has only minimal impeachment value, if any—would not have affected the weight of

impeachment evidence already offered against him.

       Moreover, this is not a close case. The other evidence of Roberson’s guilt “is

strong enough to sustain confidence in the verdict.” See 

. In

particular, both Smith and Shaw testified that Roberson made comments indicating he

killed Fisher. Chism and Escobedo testified they picked up a nervous and out-of-breath

Roberson near the murder scene and drove him away until he asked them to dispose of an

item in a lake. And the murder weapon was ultimately found in a pond behind the

Wal-Mart that Roberson visited after the murder.

       Roberson’s Brady claim lacks merit.

                             III. Sufficiency of the Evidence

       Roberson argues insufficient evidence supports his § 1512(a)(1)(C) murder

conviction and his drug-conspiracy convictions. “We review sufficiency of the evidence

claims de novo” to determine “whether, after viewing the evidence in the light most

favorable to the prosecution, any rational trier of fact could have found the essential

elements of the crime beyond a reasonable doubt.” United States v. Faust, 

, 1247-48 (10th Cir. 2015) (internal quotation marks omitted).

                                             11
       In regard to the murder conviction, Roberson appears to contend there is

insufficient evidence he was the murderer. We disagree. In addition to the evidence

cited above in rejecting Roberson’s Brady claim, we note Cooper’s testimony that on the

night of Fisher’s murder, Webb said that Roberson had killed her. Cooper further

testified that several days after the murder, Roberson admitted he killed her.

Consequently, the jury’s finding that Roberson killed Fisher is well “within the bounds of

reason.” United States v. Triana, 

, 1195 (10th Cir. 2007) (internal

quotation marks omitted).

       As for the drug-conspiracy convictions, Roberson argues the evidence shows that

he was merely “a small level drug distributor,” selling only “a few grams of crack

cocaine” with no involvement in Webb’s organization. Aplt. Opening Br. at 35-36.

Roberson’s argument is contradicted by overwhelming evidence of significant

involvement in Webb’s organization. The evidence showed that Roberson not only

distributed large amounts of powder and crack cocaine for the organization, he acquired

powder cocaine and was involved in converting it to crack cocaine for distribution by

other members. Further, he exercised authority over other members of the organization

and he murdered Fisher to protect the organization.

       Substantial evidence supports Roberson’s murder and drug-conspiracy

convictions.

                                      IV. Sentencing

       Roberson argues that his prior felony drug convictions could not be used to

support a mandatory life sentence because the finality of those convictions was not

                                            12
presented to the jury and proven beyond a reasonable doubt. This court has repeatedly

stressed, however, that “the ‘fact’ of a prior conviction may be found by a sentencing

judge rather than a jury.” United States v. Prince, 

, 1271 (10th Cir. 2011).

Roberson concedes his argument is foreclosed by circuit precedent, but he raises it “to

preserve the argument for review to the Supreme Court and/or to take advantage of a

favorable ruling from the Supreme Court.” Aplt. Opening Br. at 32. Accordingly, we

reject his argument.

                                      CONCLUSION

      We affirm Roberson’s convictions and sentence.
                                             Entered for the Court


                                             Jerome A. Holmes
                                             Circuit Judge




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