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Case Description

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Summary based on the NamUs case record (MP149909) and 1 other source
Patrick Kenneth Knudson, 20, was reported missing following a boating incident on Shasta Lake near Redding, California, on July 4, 1992. The public case record in the National Missing and Unidentified Persons System lists him as a long-term missing adult and associates his case with Shasta County authorities. According to that record, multiple individuals were recovered from the water after a two-vessel collision on the lake, but Patrick was not found and has remained missing ever since.

Shasta Lake lies roughly ten miles north of the city of Redding in Shasta County and is a major regional recreation area for boating and water sports, which can draw heavy holiday crowds. The lake’s size and complex shoreline can complicate search and rescue efforts, especially around its many coves and islands. Beaver Island, identified as a small island within Shasta Lake, sits in the northern part of the reservoir and helps fix the general area tied to Patrick’s last known circumstances.

The Shasta County Sheriff’s Office is the investigating agency of record. The department oversees boating safety and enforcement on Shasta Lake through its Boating Safety Unit, which is based at Bridge Bay Resort on the main dock and responds to on-water incidents. The sheriff’s office headquarters is located at 300 Park Marina Circle in Redding. Members of the public with information are encouraged to contact the sheriff’s office through its official channels.

Patrick is listed in NamUs as a white male with brown hair and brown eyes; at the time he went missing, he was approximately 6 feet tall and 165 pounds. His case page in the national database remains active for comparison and investigative purposes, reflecting the continuing hope for answers and the importance of any lead that could help clarify what happened that holiday weekend on the water.

Last Seen: Jul 4, 1992

Links to Additional Sources (1)

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Possible Unidentified Matches (2)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

76%Possible
John Doe — Glamis, California - unidentified case UP15319
John Doe — Glamis, California
UP15319 • Found Oct 2, 1995
View case
Sex ✓Male
Age 100%Est. 15–22 vs 20 when missing
Race 100%White
Location 75%Same state
TimingFound 3 years after last seen
Height 36%5'7" vs 6'0"
Weight 100%150 lb vs 165 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
75%Possible
John Doe — California - unidentified case UP17689
John Doe — California
UP17689 • Found May 10, 1998
View case
Sex ✓Male
Age 100%Est. 20–30 vs 20 when missing
Race 100%White
Location 60%173 mi away, same state
TimingFound 6 years after last seen
Height 68%5'9" vs 6'0"
Weight 100%170 lb vs 165 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

Unidentified photos are blurred because many are post-mortem. Tap a photo to reveal it.