Vital Statistics at Time of Disappearance
Details of Disappearance
Theriault was last seen in Irvine, California on December 2, 1998. When Theriault disappeared, he never said goodbye to his friends and he didn't take money, credit cards or his car. He has never been heard from again.
His girlfriend, Judy Valot, was convicted of his murder in August 2000, nearly two years after Theriault disappeared.
Theriault's remains and the murder weapon have never been located.
Authorities presented several drops of blood as the key pieces of physical evidence during Valot's trial.
She was sentenced to 15 years to life in prison.
Investigators believe that Theriault's body is buried between Irvine in Orange County, California and Blythe in Riverside County, California. Searches of the locations have not produced evidence as to Theriault's whereabouts.
If you have any information concerning this case, please contact:
Irvine Police Department
The Long Beach Press-Telegram