THOMPSON, Justice.

Appellant Curtis Butler appeals from the denial of his motion for new trial following his conviction for the malice murder of Dwayne Streeter and other related crimes.1 Finding no error, we affirm.

1. Viewed in the light most favorable to the verdict, the jury was authorized to find that appellant and the victim were acquaintances who on a frequent basis bought and sold drugs from each other. On the day of the crimes, appellant and a co-defendant went to the victim's apartment under the guise of selling him drugs but with the intent to rob him in retaliation for his refusal to provide appellant with bond money after a recent arrest. The parties argued, and the victim was fatally shot in the chest while standing in his doorway. Appellant was questioned by police after witnesses saw two men running from the apartment and identified appellant's distinctive vehicle as the one seen leaving the crime. Friends of the victim told police the victim had been waiting for appellant at his apartment to make a deal. Appellant provided several inconsistent stories to authorities but ultimately admitted he was present at the drug deal at the victim's apartment.

Construed in the light most favorable to the verdicts, the evidence was sufficient to enable a rational trier of fact to find appellant guilty beyond a reasonable doubt of the crimes for which he was convicted. Jackson v. Virginia, 443 U.S. 307, 99 S.Ct. 2781, 61 L.Ed.2d 560 (1979).

2. Appellant contends the trial court erred by admitting evidence of his prior drug arrest as similar transaction evidence because the instances were not sufficiently similar. However, this claim of error has not been preserved for appeal. Although appellant objected to this evidence at a Uniform Superior Court Rule 31.3 hearing, he did not do so on the ground now raised. It is well established that

Riddle v. State, 208 Ga.App. 8, 10, 430 S.E.2d 153 (1993). See also Whitehead v. State, 287 Ga. 242(2), 695 S.E.2d 255 (2010); Smith v. State, 268 Ga. 42(3), 485 S.E.2d 189 (1997); Buckner v. State, 219 Ga.App. 71(2), 464 S.E.2d 11 (1995). See also Hunter v. State, 202 Ga.App. 195, 198(3), 413 S.E.2d 526 (1991) ("nothing in ... Williams suggests that the Supreme Court has determined to dispense with the long-standing rule that, to warrant appellate consideration, an objection to the admission of evidence must first have been raised in the trial court"). Accordingly, appellant's general objections that he had not yet been convicted of the similar crimes and that introduction of the similar transaction evidence would improperly place his character in issue did not preserve the alleged ground of error.

3. While testifying about appellant's arrest for the similar transaction, a GBI agent mentioned that during the investigation police identified appellant from a mug shot they received from the Cobb County Sheriff's office. There was no additional inquiry concerning the mug shot, and appellant did not object to the agent's mention of the photograph at the time of trial. On appeal, appellant contends the agent's reference to his mug shot from a previous arrest improperly placed his character into evidence. See OCGA § 24-2-2. Even assuming this issue has been preserved for appeal and the agent's testimony improperly placed appellant's character into evidence, we conclude the error was harmless based on the overwhelming evidence of appellant's guilt. See Sharpe v. State, 288 Ga. 565(4), 707 S.E.2d 338 (2011) (introduction into evidence of mug shot relating to previous crime impermissibly places defendant's character into evidence). Compare Fulton v. State, 278 Ga. 58(5), 597 S.E.2d 396 (2004) (witness' reference to fact that photograph of defendant was in police files prior to arrest for which he was being charged did not place character into evidence).

4. Appellant contends the trial court erred by admitting into evidence under the necessity exception to the hearsay rule the testimony of Durand Nichols and Evanda Buxton regarding statements made by the victim about his relationship with appellant. See OCGA § 24-3-1(b).

Hearsay evidence is admissible under the necessity exception to the hearsay rule if: (1) the declarant of the statement is unavailable; (2) the declarant's statement is relevant and more probative of a material fact than other evidence that may be procured and offered; and (3) the statement exhibits specific indicia of reliability. Mills v. State, 287 Ga. 828(3), 700 S.E.2d 544 (2010). In determining whether an out-of-court statement bears sufficient indicia of trustworthiness, we look at the totality of the circumstances. Roper v. State, 263 Ga. 201, 202, 429 S.E.2d 668 (1993). Whether a statement is trustworthy is a matter for the trial court's discretion, and the exercise of such discretion will not be overturned absent an abuse of discretion. Myers v. State, 275 Ga. 709(2), 572 S.E.2d 606 (2002).

Although not challenged by appellant on this basis, we find the first and second prerequisites are satisfied here because the victim is deceased and unavailable to testify, the statements are relevant to show appellant's intent, motive, and bent of mind, and are more probative of these facts than other evidence that could be procured and offered. See Watson v. State, 278 Ga. 763, 765, 604 S.E.2d 804 (2004). With regard to the third prerequisite, appellant argues there was no evidence of a close relationship between the victim and the witnesses or that the victim placed great confidence in the witnesses and therefore, the statements lack the required indicia of reliability. We disagree. Nichols testified he had known the victim for five years. They were close friends who talked at least several times a day, often about personal matters. Nichols stated he considered the victim to be his "little brother." Similarly, Buxton testified he and the victim had been close friends for three or four years before the shooting. They lived just minutes apart, saw or spoke with each other every day, and knew each other's family members. Both witnesses stated they discussed personal and confidential matters with the victim, including the drug deals in which the victim was involved and the fact that the victim had a falling out with appellant after he refused to provide bond money. Based on the record evidence, we cannot say the trial court abused its discretion by concluding the testimony of Nichols and Buxton bore sufficient indicia of trustworthiness to be admissible under the necessity exception to the hearsay rule. See Gibson v. State, 290 Ga. 6, 717 S.E.2d 447 (2011); McPherson v. State, 274 Ga. 444(10), 553 S.E.2d 569 (2001) (guaranty of trustworthiness shown by testimony that witnesses were close friends with victim who routinely confided in them with respect to personal matters).

Judgment affirmed.

All the Justices concur.