M’RQuan Jefferson was 19 when he was fatally shot on May 8, 2017, in East St. Louis, Illinois.

Investigators arrested several suspects in connection with the incident; the account identifies one person as a key suspect and says prosecutors presented substantial evidence against those charged. Court hearings and litigation followed, drawing media and public attention and prompting community discussion about violence and local safety.

The family remained active in court and community efforts seeking justice and awareness. If anyone has information about what happened that night or knew M’RQuan, please come forward with tips for investigators.