A 39-year-old man was struck and killed by a hit-and-run driver on a busy Santa Clarita roadway Friday night, and authorities are still searching for the vehicle involved. Dion Mumphrey died at the scene of the collision, which occurred around 8:22 p.m. on April 10, 2026, at the intersection of Magic Mountain Parkway and Tourney Road .
The area near Valencia is known for heavy nighttime traffic, with shopping centers and freeway access points drawing steady crowds even after dark. According to the Los Angeles County Sheriff’s Department, a large, dark-colored pickup truck was traveling westbound on Magic Mountain Parkway when it hit Mumphrey as he was either crossing or standing near the roadway. The driver did not stop. The truck continued westbound, disappearing into the night before anyone could get a license plate number.
Witnesses at the scene provided descriptions of the vehicle, but no arrest has been made. Emergency responders from the Los Angeles County Fire Department arrived quickly, but Mumphrey’s injuries were too severe. He was pronounced dead at the scene . The Los Angeles County Medical Examiner later confirmed his identity and notified his family.
Investigators believe the pickup was traveling at a significant speed when it struck Mumphrey. The force of the impact left little chance for survival. Deputies are now reviewing surveillance footage from nearby businesses and traffic cameras in the area, hoping to capture an image of the fleeing truck or its driver.
The Santa Clarita Valley Sheriff’s Station has urged anyone who may have witnessed the collision or seen a dark-colored pickup truck fleeing the area Friday night to come forward. Even small details, such as a partial license plate number or a distinctive feature of the vehicle, could help investigators track down the driver.
Mumphrey’s death has also highlighted a troubling trend in Los Angeles County. Hit-and-run collisions have been rising steadily, and authorities have repeatedly reminded drivers that leaving the scene of an injury or fatal crash is a felony offense. Under California law, drivers involved in any collision are required to stop, remain at the scene, and render aid to anyone who is injured.
As the search continues, Mumphrey’s family is left waiting for answers. They have asked for privacy while they grieve, and no additional details about his life or background have been publicly released. The investigation remains active, and anyone with information is asked to contact the Santa Clarita Valley Sheriff’s Station at 661-255-1121. Tips can also be submitted anonymously to Crime Stoppers at 800-222-8477.