Alphonzo LaQuan Pyles, 22, was found shot to death in a parking lot near Greer, South Carolina, on the morning of July 18, 2015. Greenville County Sheriff’s investigators ruled his death a homicide and the case later went cold as the investigation stretched over several years.

Cold case work eventually uncovered a link between Pyles and Brandon Rashard Barksdale: both had been involved in an armed robbery together in 2013, and investigators say Barksdale believed Pyles might testify against him. Barksdale, who was already incarcerated and serving a 20-year sentence for multiple violent crimes including attempted murder, carjacking, and armed robbery, was charged with Pyles’s murder. A second man, Isaiah Emmanuel Irby, was charged as well; investigators believe Irby drove Pyles to the secluded parking lot where Barksdale was waiting and the fatal shooting occurred.

Who knew Alphonzo or saw him in the Greer area around July 2015 and might have information about that morning?