Investigators have released surveillance video of three suspects wanted in connection with a deadly shooting in Flatlands. 

According to police, the man seen in the video wearing a black jacket and grey pants is the alleged gunman who killed 15-year-old Isiah Joseph near East 56th Street and Avenue H Sunday afternoon. 

The teen's father says his son was a good kid who got along with everyone and had plans to study business in college. 

A 20-year-old man was also shot, and is in stable condition at the hospital, but will need surgery. His mother also spoke with News 12, saying that their family just moved from North Carolina last year, and that her son was planning to take classes to become a mechanic. 

Anyone with information is asked to call Crime Stoppers at 1-800-577-TIPS.