John Manning Sellars, a 17-year-old from Orange County, Texas, was killed on July 12, 1973, two days before his 18th birthday. He was found bound hand and foot and shot four times in the chest with a rifle; his body was buried at High Island Beach about two miles from other victims’ graves. Sellars’s burned-out car was recovered near Starks, Louisiana, a week after his disappearance.

Sellars’s death is linked in many reports to Dean Corll’s series of abductions and murders of teenage boys and young men in 1970–1973, but there are notable questions. Corll’s other known victims were typically strangled or shot with a .22 pistol, and at the 1974 trial of accomplice Elmer Wayne Henley Harris County medical examiner Dr. Joseph Jachimczyk expressed doubt that Sellars was one of Corll’s victims. Neither Henley nor David Brooks specifically named Sellars in their confessions.

Does anyone have additional information about Sellars’s last known movements or the investigation into his death?