Patricia Patti Ann Leblanc was 15 when she ran away from a youth shelter outing at the Seattle Center on August 12, 1983. She had been placed in the shelter after an arrest for prostitution four days earlier and had a history of running away; her former foster mother said Patricia would always make contact, which did not happen after this disappearance.

Investigators and the Green River Task Force strongly suspect Patricia became a victim of the Green River Killer, Gary Ridgway, whose victims included runaways and women involved in prostitution. Ridgway was questioned about her in 2003 and said he had no memory of her; her body has never been found and she was never charged in this case. Her case remains open and she is classified as an endangered missing person.

What information do readers have about Patricia’s last known movements at the Seattle Center or anyone who saw her that day?