206 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Case Description
Any updates on this case?
On July 2, 2023, at approximately 7:20 a.m., 36-year-old Joshua Paul Gephart was found deceased from a gunshot wound in the 5000 block of Boyd Road in Arcata, California. Gephart, originally from Fortuna, had recently been living transiently in the Valley West area of Arcata.
The Arcata Police Department (APD) swiftly initiated a homicide investigation, identifying 24-year-old Gregory Nelson Mattox of McKinleyville as the primary suspect. An arrest warrant was issued for Mattox, who wa ...Read More
The Arcata Police Department (APD) swiftly initiated a homicide investigation, identifying 24-year-old Gregory Nelson Mattox of McKinleyville as the primary suspect. An arrest warrant was issued for Mattox, who wa ...Read More
Links to Additional Sources (7)
See any mistakes?Victim Details
Joshua Paul Gephart
Male
White / Caucasian
Arcata
CA
2023-07-02
36
Joshua
Paul Gephart
11/14/2025



