On a cold January morning in 2015, 65-year-old Johnny Singleton was found dead behind the wheel of his vehicle along Highway 521 in Rembert, South Carolina. The scene was first treated as a single-car crash, but an autopsy showed Singleton died from a fatal gunshot wound, and the case was reclassified as a homicide.

The Sumter County Sheriff’s Office identified 21-year-old Matthew Cory Dwyer of Sumter as being in Singleton’s vehicle when the shooting occurred. Investigators concluded Dwyer intentionally fired the weapon; he was arrested a little over a week after the body was found and charged with murder and possession of a weapon during a violent crime. Prosecutors believed robbery was the initial motive.

Dwyer was tried and convicted of Singleton’s murder. In 2023 the South Carolina Court of Appeals reviewed a post-conviction claim about the effectiveness of his trial counsel related to advice on testifying and a written attempt at an alibi, and the appellate court affirmed the lower court’s decision. Does anyone have information about Johnny Singleton, his movements that morning, or witnesses who haven’t been heard from?