San Diego, CA (July 30, 2025) – Emergency personnel responded swiftly early Saturday morning to a deadly collision on northbound Interstate 5 just south of Sixth Ave, where a young motorcyclist tragically lost his life following a two-vehicle crash.
According to officials from the San Diego Police Department (SDPD), the incident occurred at approximately 12:07 a.m. and involved 19-year-old Thom Nguyen. Preliminary reports state that Nguyen was traveling north on I-5 when he lost control of his motorcycle and collided with a barrier wall. The impact caused him to be ejected from his motorcycle onto the roadway.
Moments later, Nguyen was struck by another vehicle traveling on the freeway. Emergency responders from San Diego Fire-Rescue arrived on scene and provided immediate assistance, but sadly, Nguyen succumbed to his injuries and was pronounced dead at the scene.
Authorities have not disclosed further information regarding the second vehicle involved, and no additional injuries were reported. The crash remains under investigation as SDPD works to determine the exact circumstances leading up to the collision.
Our thoughts go out to the family and friends of Thom Nguyen during this devastating time.
Motorcycle Accidents in California
Motorcycle crashes in California often result in serious or fatal injuries due to the exposed nature of the vehicle and the high speeds common on major highways like Interstate 5. This tragic incident on I-5 underscores the dangers faced by motorcyclists and the devastating impact these collisions can have on families and communities.
In this particular case, the fatal crash occurred in the early morning hours, a time when reduced visibility and drowsy driving may contribute to accident risk. The ejection of the rider and subsequent secondary impact further highlight the extreme vulnerability of motorcycle operators, especially in high-speed zones near urban centers like downtown San Diego.
California consistently reports some of the highest numbers of motorcycle fatalities in the nation, with urban freeways being hotspots for such incidents. According to data from the California Office of Traffic Safety, younger riders, particularly those under the age of 25, remain among the most at-risk groups.
This collision also illustrates the importance of both rider safety practices and increased driver awareness. Preventative measures such as advanced training courses, reflective gear, and vigilant scanning by other motorists can significantly reduce the likelihood of these tragic outcomes.
Local authorities may conduct a full traffic reconstruction to determine contributing factors—such as speed, road conditions, or mechanical issues—which could inform future roadway safety enhancements. As this investigation proceeds, it also serves as a painful reminder of how quickly lives can be lost on California’s highways.
If you or someone you know has been affected by a motorcycle accident, it’s crucial to understand the legal and support resources available. Victims and families often face not only emotional trauma but also mounting financial and logistical challenges in the aftermath of a collision.
If you’ve lost a loved one in a motorcycle crash, know that you are not alone. Local Accident Reports is here to provide support, information, and assistance during this incredibly difficult time. Connect with compassionate professionals who can guide you through your options and ensure your rights are protected.
