Shannon Olson was 15 and out with a friend trick-or-treating in Wichita, Kansas on Halloween night, October 31, 1987. She told her friend she was stepping out to get a drink and left her purse behind; that was the last time the friend saw her alive.

On November 1, 1987, two men heading out to go fishing found Shannon’s body floating in a remote sand pit near 29th and Hydraulic. The scene showed a violent struggle: her hands were tied behind her back, she had multiple stab wounds to the chest, and her throat had been slashed. The location was secluded and not well lit, suggesting the killer knew the area.

No arrests have ever been made and the Wichita Police Department kept the investigation open; the case went cold and remains an unsolved homicide. If anyone knew Shannon that Halloween night or has information about the sand pit area near 29th and Hydraulic, please come forward.