OPINION OF THE COURT

GRAFFEO, J.

Shortly after the horrendous attacks on September 11, 2001, the New York Legislature convened in special session to address the ramifications of these terrorist actions. Confronted with the tragic events of that infamous day, the legislature recognized that "terrorism is a serious and deadly problem that disrupts public order and threatens individual safety both at home and around the world" (L 2001, ch 300, § 4). It decided that New York laws needed to be "strengthened" with comprehensive legislation ensuring "that terrorists ... are prosecuted and punished in state courts with appropriate severity" (id.).

The result was Penal Law article 490 and, among its provisions, was the new "crime of terrorism" (Penal Law § 490.25). It occurs when a person "commits a specified offense" with the "intent to intimidate or coerce a civilian population, influence the policy of a unit of government by intimidation or coercion, or affect the conduct of a unit of government by murder, assassination or kidnapping" (Penal Law § 490.25 [1]). Specified offenses include many class A and violent felonies, as well as attempts to commit those crimes (see Penal Law § 490.05 [3] [a], [b]). Article 490 does not, however, contain a statutory definition of "intent to intimidate or coerce a civilian population" (Penal Law § 490.25 [1]). This appeal requires us to consider whether this phrase encompasses the acts perpetrated by defendant.

I

Defendant Edgar Morales was a member of a street gang known as the "St. James Boys" or "SJB" — apparently named for the vicinity of the Bronx where the SJB operated (running from Webster Avenue to University Avenue and from 204th Street to 170th Street). The SJB was originally formed to protect its members from other gangs and its primary objective was to be the most feared Mexican gang in the Bronx. The SJB allegedly targeted and assaulted individuals who belonged to rival confederations, extorted monies from a prostitution business and committed a series of robberies.

On the evening of August 17, 2002, several SJB members, including defendant, went to a christening party in the Bronx. They saw a man named Miguel who they thought belonged to a gang that was responsible for a friend's death. When Miguel refused to comply with their demand to leave the party, they planned to assault him after the festivities ended. Defendant took possession of a revolver from another SJB member, agreeing to shoot Miguel if it appeared that his cohorts were losing the battle.

Around midnight, a fight broke out between the SJB members and Miguel and his companions. During the melee, an SJB member directed defendant to shoot and he fired five bullets from the handgun. Three shots hit one of the rivals and paralyzed him. A 10-year-old girl was shot in the head and died. After the SJB members fled the scene, defendant handed the gun to a female member who later passed the weapon to another SJB member. Another SJB member threw the five spent shell casings into a sewer.

After the incident, the police obtained a videotape of the christening party and using still photographs from the video, they distributed photos of suspects to the media. Subsequently, several SJB members identified defendant as one of the individuals involved in the shooting. When he was questioned by the police, defendant admitted that he attended the party but denied being the shooter, claiming that he was merely the person who carried the weapon away from the scene. Additional evidence was gathered during the investigation, including four shell casings retrieved from a sewer.

The People subsequently secured a 70-count indictment against the SJB members. Defendant, along with certain accomplices, was charged with crimes of terrorism pursuant to Penal Law § 490.25 predicated on: intentional murder in the second degree; manslaughter in the first degree; attempted murder in the second degree; gang assault in the first degree; and criminal possession of a weapon in the second degree. The underlying offenses were charged separately without the terrorism designations. Defendant and 19 others were also charged with conspiracy in the second degree based on a multitude of overt acts, including various assaults and homicides that occurred from mid-2001 to mid-2004.

During the trial, defendant challenged the sufficiency of the evidence supporting the terrorism charges. The defense argued that the activities of the SJB were "directed at rival gangs, almost exclusively" and there was "no real evidence, certainly not evidence sufficient to get to the jury on the element of acting with intent to intimidate or coerce a civilian population." The People maintained that the targeting of other gangs was covered by Penal Law article 490 and, in any event, there was adequate proof that the SJB engaged in acts intended to intimidate or coerce all Mexican-Americans in the pertinent geographical area.

Supreme Court denied the motion, concluding that the People had established a prima facie case of terrorism based on the five designated underlying offenses. The jury convicted defendant of three crimes of terrorism under Penal Law § 490.25 premised on first-degree manslaughter, attempted second-degree murder and second-degree weapon possession, as well as second-degree conspiracy for agreeing to commit first-degree gang assault as a crime of terrorism. Defendant was sentenced to an aggregate prison term of 40 years to life.

The Appellate Division, First Department, held that there was insufficient evidence to prove an intent to intimidate or coerce a civilian population because the People established that defendant only engaged in gang-related street crimes, not terrorist acts (86 A.D.3d 147 [2011]). As a result, the Appellate Division modified by reducing the terrorism convictions to the three primary offenses and the conspiracy conviction was reduced from second degree to fourth degree. Defendant's other challenges — including his claim that the People's theory of terrorism unduly prejudiced the entire trial — were rejected as unpreserved or meritless.

A Judge of this Court granted leave to defendant and the People (17 N.Y.3d 904 [2011]).

II

The People assert that the term "civilian population" as used in Penal Law article 490 embraces all of the Mexican-Americans who resided within the SJB's designated area, as well as the subset of rival Mexican-American gangs in the same vicinity. The prosecution asks us to reinstate the terrorism convictions, contending that there was sufficient evidence that defendant's actions after the party furthered the SJB's objective to intimidate or coerce other Mexican-American gangs in the Bronx and, as a result of those activities, the SJB intended to intimidate and coerce the entire Mexican-American community during the time period charged in the indictment. Defendant argues that neither the population of Mexican-Americans in the St. James Park neighborhood, nor the smaller category of rival gangs, can constitute a "civilian population" as a matter of law.

We begin by examining the text of article 490, which does not define the phrase "intent to intimidate or coerce a civilian population." We therefore give this language its "most natural and obvious meaning" (People v Hedgeman, 70 N.Y.2d 533, 537 [1987]) based on common sense and reasonableness (see e.g. People v Ballman, 15 N.Y.3d 68, 73-74 [2010]; People v Gallagher, 69 N.Y.2d 525, 530 [1987]) in the context of the purpose and history of the terrorism statutes (see e.g. People v Sanchez, 13 N.Y.3d 554, 565 [2009]). "Civilian population" could be read broadly to encompass a variety of communities depending on how the relevant "area" is defined and who lives within that territory.1 Conceivably, it could range from the residents of a single apartment building to a neighborhood, city, county, state or even a country.

Like the Appellate Division, we find it unnecessary to precisely define the contours of the phrase "civilian population" for two reasons. First, even assuming that all of the Mexican-Americans in the St. James Park area may be considered a "civilian population," the evidence at trial failed to demonstrate that defendant and his fellow gang members committed the acts against Miguel and his companions with the conscious objective of intimidating every Mexican-American in the territory identified at trial. Rather, viewing the proof in the light most favorable to the People (see People v Ramos, 19 N.Y.3d 133, 136 [2012]), the prosecution demonstrated that defendant and his accomplices arranged the attack because of Miguel's assumed membership in a rival gang and his refusal to leave the party. We do not believe that this discrete criminal transaction against identified gang enemies was designed to intimidate or coerce the entire Mexican-American community in this Bronx neighborhood.

Second, while there is a valid line of reasoning and permissible inferences from which the jury could have concluded that one of defendant's possible goals for attacking Miguel was to intimidate or coerce another gang, there is no indication that the legislature enacted article 490 of the Penal Law with the intention of elevating gang-on-gang street violence to the status of terrorism as that concept is commonly understood. Specifically, the statutory language cannot be interpreted so broadly so as to cover individuals or groups who are not normally viewed as "terrorists" (see generally Hedgeman, 70 NY2d at 537) and the legislative findings in section 490.00 clearly demonstrate that the legislature was not extending the reach of the new statute to crimes of this nature. This is apparent in the examples of terrorism cited in the legislative findings: (1) the September 11, 2001 attacks on the World Trade Center and the Pentagon; (2) the bombings of American embassies in Kenya and Tanzania in 1998; (3) the destruction of the Oklahoma City federal office building in 1995; (4) the mid-air bombing of Pan Am Flight number 103 in Lockerbie, Scotland in 1988; (5) the 1997 shooting from atop the Empire State Building; (6) the 1994 murder of Ari Halberstam on the Brooklyn Bridge; and (7) the bombing at the World Trade Center in 1993 (see Penal Law § 490.00). The offenses committed by defendant and his associates after the christening party obviously are not comparable to these instances of terroristic acts.

We must also consider the sources that the legislature consulted in drafting the new statutes. The definitional provisions of Penal Law article 490 were "drawn from the federal definition of `international terrorism'" (William C. Donnino, Practice Commentary, McKinney's Cons Laws of NY, Book 39, Penal Law § 490.10 at 299; see also Richard A. Greenberg et al., New York Criminal Law § 39:1 at 1738 [3d ed 6 West's NY Prac Series 2007] [explaining that the legislature was able to act six days after September 11th "because of the model provided by existing federal antiterrorism legislation"]). The federal antiterrorism statutes were designed to criminalize acts such as "the detonation of bombs in a metropolitan area" or "the deliberate assassination of persons to strike fear into others to deter them from exercising their rights"2 — conduct that is not akin to the serious offenses charged in this case. Similarly, a statute extending federal jurisdiction to certain crimes committed against Americans abroad with the intent "to coerce, intimidate, or retaliate against ... a civilian population" (18 USC § 2332 [d]) was not meant to reach "normal street crime"3 (see e.g. Linde v Arab Bank, PLC, 384 F.Supp.2d 571, 581 n 7 [ED NY 2005] ["drive-by shootings and other street crime," and "ordinary violent crimes ... robberies or personal vendettas," do not satisfy the intent element of "international terrorism" under 18 USC § 2331 (1)]).

If we were to apply a broad definition to "intent to intimidate or coerce a civilian population," the People could invoke the specter of "terrorism" every time a Blood assaults a Crip or an organized crime family orchestrates the murder of a rival syndicate's soldier. But the concept of terrorism has a unique meaning and its implications risk being trivialized if the terminology is applied loosely in situations that do not match our collective understanding of what constitutes a terrorist act. History and experience have shown that it is impossible for us to anticipate every conceivable manner in which evil schemes can threaten our society. Because the legislature was aware of the difficulty in defining or categorizing specific acts of terrorism, it incorporated a general definition of the crime (see generally People v Garson, 6 N.Y.3d 604, 612 [2006]; People v Lang, 36 N.Y.2d 366, 371 [1975]) and referenced seven notorious acts of terrorism that serve as guideposts for determining whether a future incident qualifies for this nefarious designation (see generally People v Assi, 14 N.Y.3d 335, 341 [2010]).

Considered in that context, and subject to possible exceptions that could arise if a criminal organization engages in terrorist activities, we conclude that the legislature did not intend for the crime of terrorism to cover the illegal acts of a gang member committed for the purpose of coercing or intimidating adversaries. Therefore, the evidence in this case was insufficient to establish defendant's guilt beyond a reasonable doubt under Penal Law § 490.25. Defendant's violent, criminal acts as a member of the SJB gang unquestionably resulted in tragic consequences — the needless death of a little girl and the paralysis of a young man — but they were not acts of terrorism within the meaning of Penal Law article 490.

III

On his cross appeal, defendant contends that he is entitled to a new trial on the underlying offenses specified in the terrorism counts because the theory of terrorism should not have been charged and the People were therefore permitted to introduce otherwise inadmissible evidence that unduly prejudiced the jury's ability to fairly adjudicate his guilt or innocence. We agree.

"Whether an error in the proceedings relating to one count requires reversal of convictions on other jointly tried counts is a question that can only be resolved on a case-by-case basis" (People v Baghai-Kermani, 84 N.Y.2d 525, 532 [1994]). We must evaluate "the individual facts of the case, the nature of the error and its potential for prejudicial impact on the over-all outcome" (People v Concepcion, 17 N.Y.3d 192, 196-197 [2011] [internal quotation marks and citation omitted]; see also People v Doshi, 93 N.Y.2d 499, 505 [1999]). Reversal is required if "there is a reasonable possibility that the jury's decision to convict on the tainted counts influenced its guilty verdict on the remaining counts in a meaningful way" (Doshi, 93 NY2d at 505 [internal quotation marks and citation omitted]; see also People v Daly, 14 N.Y.3d 848, 849 [2010]).

By proceeding on the terrorism theory, the People were able to introduce evidence about numerous alleged criminal acts committed by members of the SJB gang over the course of three years. Without the aura of terrorism looming over the case, the activities of defendant's associates in other contexts would have been largely, if not entirely, inadmissible. Based on the record, it is apparent that the volume of proof regarding unrelated assaults, murders and other offenses created a reasonable possibility that the jury's findings were prejudicially influenced. Hence, the spillover effect requires reversal and a new trial on the underlying offenses.4

Accordingly, on the People's appeal, the order should be affirmed. On defendant's appeal, the order should be reversed and a new trial ordered.

On the People's appeal, order affirmed. On the defendant's appeal, order reversed and a new trial ordered.