Tammy Sue Woodrum was 17 when she was killed during a Colorado camping trip on August 14, 1981. Vincent Darrell Groves later turned himself in and initially told police she had died of a drug overdose. The autopsy found no drugs and concluded Tammy had been raped and strangled.

Groves was charged with second-degree murder, convicted in the summer of 1982, and given a 12-year sentence. He was released on mandatory parole in 1987. Subsequent investigations and later DNA work tied Groves to additional murders; he was convicted for the 1988 killing of 19-year-old Juanita Becky Lovato and for the murder of 25-year-old Diane Montoya Mancera, and authorities later linked him to several other unsolved cases. Groves died in prison in 1996.

Does anyone have memories of Tammy or information about the camping trip that could help fill gaps in how she came to be there that day?