Antonio Pereyra was 20 when he was killed in Oklahoma City on November 8, 2012. Authorities have classified his death as a homicide; it was one of several fatal shootings that contributed to an especially violent year for the city.

Investigators and Antonio’s family believe there were people who saw or heard something important, but a persistent lack of witness cooperation has left crucial questions unanswered. That silence has stalled the probe and left the case cold over time.

Antonio’s family continues to live with the uncertainty of not knowing who was responsible. If anyone saw or heard anything on November 8, 2012, or has information that could help, please come forward and share what you know.