On a busy Sunday afternoon in Queens, New York, 20-year-old Abel Mosso was fatally shot after an argument on a 7 train escalated to the elevated platform of the 90th Street-Elmhurst Avenue station on February 3, 2019. Mosso, described in reports as a member of the 18th Street gang, was shot multiple times in the face; a bystander’s cell phone captured the disturbance and the shooting and the footage circulated widely.

The NYPD arrested 26-year-old Ramiro Gutierrez within a day and charged him with murder, gang assault, and criminal possession of a weapon. Authorities later arrested two more suspects, Victor Lopez and Tito Martinez-Alvarenga, who were also charged with murder and gang assault; prosecutors said all three took part in the attack before the fatal shots. Law enforcement characterized the killing as a targeted act tied to a feud between MS-13 and 18th Street and said the case prompted a broader crackdown on MS-13 activity. In the months afterward, Abel’s brother, Misael Flores Mosso, was arrested in connection with an alleged retaliatory shooting.

If anyone witnessed the February 3 confrontation or has information about the events that led up to the platform altercation, please share what is known.