Patrick Kenneth Knudson, 20, was reported missing after a boating incident on Shasta Lake near Redding, California, on July 4, 1992. Multiple people were recovered from the water following a two-vessel collision that day, but Patrick was not found and has remained missing since. The case is listed in the National Missing and Unidentified Persons System and is associated with Shasta County authorities.

Shasta Lake, about ten miles north of Redding, is a large reservoir with many coves and islands; Beaver Island in the lake’s northern area is tied to Patrick’s last known circumstances. The Shasta County Sheriff’s Office, whose Boating Safety Unit operates from Bridge Bay Resort, is the investigating agency. Patrick is described as a white male with brown hair and brown eyes, about 6 feet tall and 165 pounds at the time he disappeared.

Anyone who was on Shasta Lake that Fourth of July weekend or who has information about Patrick’s disappearance is asked to contact the Shasta County Sheriff’s Office.