Naomi Hall was 22 when she was found beaten to death in a Detroit motel room on May 3, 1975. Her killing was one of a series of violent attacks on women in Detroit that year; investigators later linked her death to at least six other homicides between February and October 1975. Many of the victims, including Naomi, were believed to have been involved in prostitution.

The press and investigators referred to the unknown assailant as the Bigfoot Killer or the Cass Ripper. The victims’ causes of death varied across the linked cases, from strangulation and stabbing to the severe beating that killed Naomi. A composite description circulated of a tall African-American man with an afro and facial hair, possibly in his early to mid-30s.

In January 1976, Carl Mayweather Jr. was arrested during an attempted rape and was considered a prime suspect because of some similarities to that description; investigators later established solid alibis for him in at least four of the murders and cleared him in the serial killings. Naomi Hall’s murder remains unsolved. Does anyone have information about Naomi, her movements in 1975, or the motel where she was found?