
This episode of 48 Hours covers the investigation into the unsolved death of 19-year-old Steph Smith in South Carolina, the involvement of his mother Sandy Smith, and new forensic findings.
Steph Smith was found dead on July 8, 2015, with his death initially ruled a hit and run. However, Sandy Smith believes her son was murdered. Retired South Carolina Highway Patrol lieutenant Thomas Moore questions the hit and run ruling, stating there were no signs of it at the scene.
The case gained renewed attention in 2021 after the murders of Maggie and Paul Murdaugh. Sandy Smith is working with attorneys Ronnie Richter and Eric Bland, who are seeking answers and a second autopsy for her son.
Forensic pathologist Dr. Michelle Dupri and crime scene expert Dr. Kenny Kinsey were brought in to analyze the evidence. They concluded that Steven died from a single blow to the head, suggesting foul play rather than an accident.
Nikki Battiste reports on the ongoing investigation and Sandy Smith's determination to find the truth about her son's death.
Sandy Smith seeks answers in her son Steph's unsolved murder, with new forensic evidence suggesting foul play rather than a hit and run.

This episode stands out for the following:
I do believe Steven was murdered."48 Hours" investigates cold case of Stephen Smith
All I want is peace and to know what happened to my son."48 Hours" investigates cold case of Stephen Smith
She will not give up until she has answers."48 Hours" investigates cold case of Stephen Smith