Sean Pfeffer, 45, was found dead on March 24, 2025, in Los Gatos, California. His body and that of 53-year-old Colter White were discovered together in the bed of a pickup truck parked in a pullout along State Route 35 (Skyline Boulevard), in a heavily wooded area near Sanborn County Park and Castle Rock State Park. Authorities confirmed both men had been fatally shot and classified the deaths as homicides.

Investigators say Pfeffer and White were residents of the Santa Cruz Mountains and were acquainted with the suspect. A search warrant executed on April 9 in Santa Cruz County yielded evidence that led to an identified suspect; on April 28, 66-year-old James David Collier of Boulder Creek was arrested and booked into the Santa Clara County Jail without bail. Detectives have confirmed Collier knew both victims but have not released details about what led to the shooting. The investigation remains ongoing.

Did anyone in the Santa Cruz Mountains area know Pfeffer or White, or have information about their activities on or before March 24, 2025?