Isaac Monigan was 19 and from East St. Louis, Illinois when he was found dead on June 24, 2015. Authorities treated his death as suspicious rather than accidental, and local law enforcement opened a homicide investigation.

The Illinois State Police later released a video asking the public to help identify a person of interest linked to the case. Investigators have faced challenges, including few witnesses willing to come forward, and the investigation has made limited progress with no major arrests or court actions reported.

The community was deeply affected by his death and calls for justice followed. If anyone knew Isaac, saw activity in East St. Louis around June 24, 2015, or has information about the person shown in the identification video, please come forward.