San Diego, CA — May 3, 2025, One person was killed and three were injured in a car accident that occurred around 9:00 A.M. in I-805.

An investigation is underway following a car accident that left one person dead and injured four others during the morning hours of May 3rd. According to official reports, a five vehicle accident occurred in the southbound lanes of Interstate 805 near Palm Avenue and 83rd Street, though details of how the collision occurred are still being determined.

When first responders arrived on the scene, they found that one person was fatally injured and pronounced deceased, while four others sustained serious injuries and they were transported to the hospital for treatment. At this time there has been no further information released from the accident, including the identities of those involved or what caused the crash, however this remains an ongoing investigation and more details may be released by authorities in the future.

Commentary by Attorney Michael Grossman

When a crash involves five vehicles on a major interstate—especially one that results in a fatality and multiple serious injuries—it is crucial that investigators approach the incident with a comprehensive strategy. The May 3rd collision on southbound Interstate 805 near Palm Avenue and 83rd Street is a complex event that likely involved a chain reaction or abrupt traffic disturbance. To uncover the full story and determine whether the crash could have been prevented, three key questions must be asked.

First, has the crash scene been thoroughly reconstructed to establish the sequence of impacts and positions of each vehicle? In multi-vehicle collisions, the point of origin can be difficult to determine without detailed physical evidence. Investigators need to examine damage patterns, skid marks, final vehicle positions, and eyewitness accounts to identify which vehicle initiated the sequence and how each subsequent impact occurred. The flow of traffic leading up to the crash—particularly in congested areas—can be a critical factor in understanding how quickly drivers were able to react.

Second, has the possibility of a mechanical failure or contributing hazard been considered? A sudden brake failure, tire blowout, or visibility issue (such as sun glare or obstructed signage) could have triggered a chain reaction. In a multi-vehicle crash, it’s also important to determine whether any vehicles failed to maintain a safe following distance or made unsafe lane changes. In such collisions, even a single vehicle’s failure to respond appropriately can multiply the number of people affected and the severity of injuries.

Third, has electronic data from all involved vehicles been collected and analyzed? Modern vehicles are typically equipped with electronic control modules (ECMs) that store pre-crash information—speed, brake application, throttle position, and steering input. This data helps clarify whether drivers attempted evasive actions and how the vehicles responded. If dash cams, highway surveillance cameras, or nearby security footage are available, these resources can provide additional visual context and verify how events unfolded across lanes and over time.

A five-vehicle crash with one fatality and several injuries requires more than basic reporting—it demands a methodical investigation. These three questions—focused on reconstructing the scene, evaluating mechanical and environmental factors, and analyzing digital evidence—are essential to developing a fact-based understanding of what occurred. Only with that clarity can the affected parties, and the public at large, begin to understand the cause of the crash and whether any actions could have made a difference.