Shortly before 9:30 a.m. on October 29, three males believed to be between sixteen and eighteen years old were already in the area of Crotona Park wearing black clothing and surgical masks. When fifteen-year-old Javits Frimpong appeared on the sidewalk near East 171st Street and Crotona Place, walking toward DreamYard Preparatory School, they moved toward him. He ran. Surveillance video shows the chase down the block, the moment he was sH๏τ once in the abdomen, and his collapse roughly a block away. Officers found him and drove him to St. Barnabas Hospital, where he died later that day.

After the shooting the three suspects returned to collect the shell casings before fleeing. Detectives later determined they jumped a turnstile at a nearby station and boarded a southbound No. 5 train toward Manhattan. During the chase Frimpong dropped his backpack. A separate individual stole the bag; it has not been recovered. The level of coordination—masks, collection of evidence, immediate subway flight—struck investigators as calculated.

Police released descriptions and portions of the video early in the investigation, seeking the public’s help. For nearly two weeks no arrests were made. On November 11 the Violent Crimes Task Force took Thierno Jalloh into custody. Sources said he was identified in part through witness statements and surveillance. He faces second-degree murder, manslaughter, and weapons charges and remains held without bail. Two other individuals seen in the video are still being sought.

Frimpong had been in the United States since October 28, 2025, living with his father a short distance from the shooting scene. Classmates described him as focused on schoolwork. He had told relatives he wanted to become a doctor. The morning he was killed was ordinary until the three masked figures approached. The video of his final run has been viewed widely and has fueled community anger.

As of mid-November the investigation remains open. Prosecutors are presenting evidence to a grand jury, and Jalloh is expected back in court. Authorities have not publicly identified which of the three fired the fatal sH๏τ. The backpack, the shell casings, and the subway route continue to form part of the case file as detectives work to locate the two remaining suspects who fled the Bronx sidewalk that morning.