Vital Statistics at Time of Disappearance
Details of Disappearance
David was last seen on May 3, 1968. On May 3, 1968, David rode the bus from Clark Elementary School to a stop along Southeast Tiger Mountain Road and then went to play with 6-year-old Kevin Bryce, a friend from church. David needed to return home for dinner at about 5 p.m., and Kevin and David walked to a bridge across 15 Mile Creek. Kevin asked David if he could reach home, and David said yes and headed to the shortcut.
David went missing while returning alone from a friend's house to his home on the 14000 block of 240 Avenue S.E.
More than 1,000 searchers, with the aid of dogs, combed Tiger Mountain in the days following his disappearance, but he was never found. They did not suspect that there was any foul play and there was no evidence taken at the time.
David was a third-grader at Clark Elementary School at the time.
Soon after the Cold Case Unit re-engaged in the Adams case in early 2009, investigators collected DNA samples from Adams family members and interviewed people connected to the case in 1968. Investigators focused for a time on a former Adams neighbor, a 20-year-old Navy corpsman in 1968. Detectives interviewed the man and conducted a polygraph test in the days after David disappeared, police records state. The man agreed to another polygraph test in April 2009 at the Lewis County Sheriff’s Office. The man told Tompkins he assisted in the search, but failed the test, court documents state. The technician administering the test recorded the strongest deception reading in response to, “Do you know where the body is?”
The man also told Tompkins he passed a polygraph test in May 1968, court documents state. However, the test is not included in the current Adams case file. No conclusive evidence links the man to the disappearance.
If you have any information concerning this case, please contact:
King County Sheriff’s Office