In July 2015, Stephen Smith's body was found with a fatal head wound on a road in South Carolina's Hampton County.
The authorities claim that Smith was walking home after running out of gas, and was then struck by a moving vehicle.
Stephen's mother Sandy Smith, however, believes her son was murdered because he was openly gay. If that is true, who murdered Stephen?
Internet sleuths are floating a new theory that suggests Buster Murdaugh killed Smith, as well as his own brother Paul Murdaugh.
Read more below.