On Sunday, July 14, 1974, 18-year-old Denise Marie Naslund disappeared from Lake Sammamish State Park in Issaquah, Washington. She had been spending the afternoon there with her boyfriend and another couple and left to use the restroom; she never returned. The park was crowded that day, with an estimated 40,000 people attending a large company picnic.

Earlier that afternoon a man calling himself Ted, wearing his arm in a sling and asking for help loading a sailboat onto a tan or bronze Volkswagen Beetle, had approached several young women at the park. One of those women, 23-year-old Janice Ann Ott, vanished about four hours before Denise did. Denise’s friends and family believed she might have been susceptible to helping someone who appeared injured.

On September 6, 1974, hunters found skeletal remains on a remote hillside near a service road in Issaquah. The remains were identified as Denise Naslund and Janice Ott; parts of a third set of remains were later matched to Georgann Hawkins. Because of the condition of Denise’s remains no definitive cause of death could be determined, but her death was ruled a homicide. Investigators later identified Theodore Robert Bundy as the assailant, and he confessed to killing Denise, saying he abducted both women from Lake Sammamish and murdered one in front of the other.

Did anyone who knew Denise or attended that picnic ever see someone matching that description near the restrooms or the beach area that afternoon?