Tina Sue Spencer was 17 when she disappeared from Springfield, Missouri in 1976. She left home January 5 and was reported missing January 6, then remained intermittently in contact with family through a call from Florida on March 5. On March 14 she was left stranded at Springfield Municipal Airport after a male friend failed to show; a taxi driver brought her to a house in the 400 block of North Main. People at the house said she walked off to use a payphone and was not seen alive again.

In April her billfold was found near McDaniel Lake. On November 28 rabbit hunters found skeletal remains in woods near the lake; identification relied on an orthopedic hip plate. Investigators concluded she was murdered — a knotted vinyl belt near the neck suggested strangulation and her underwear was found near her feet. No suspects were publicly named and no arrests have been reported. If anyone knew Tina, saw her in March 1976, or has information about the area near McDaniel Lake, please come forward.