Kelly Morrissey was 15 and living in Lynbrook, New York, when she was last seen on June 12, 1984. She had been with friends in her neighborhood that day and left to walk home but never arrived. Her family reported her missing after several hours, and local police retraced her last known steps and interviewed friends, family and neighbors.

Searches of the area and follow-up interviews produced no significant leads. Investigators considered whether she had run away or been the victim of foul play, but the case produced no clear evidence in either direction. The disappearance shocked the community because Kelly was described as a responsible teenager who did not have a history of leaving home without informing her family. Her family made public appeals and the case received media attention, but it remained unsolved and the investigation stayed open.

If anyone knew Kelly, saw her on June 12, 1984, or has information that could help, please come forward.