A 26-year-old Moreno Valley motorcyclist died Saturday night after a collision at a Riverside intersection near Bordwell Park, and investigators are still trying to determine exactly how it happened. Dylan Monterola Alas was fatally injured just after 7 p.m. at Martin Luther King Boulevard and Angelo Street when his motorcycle and a car collided, leaving him in cardiac arrest on the roadway.
Paramedics Fought to Save Him at the Scene
Paramedics arrived to find Alas in cardiac arrest and immediately began life-saving measures, according to MyNewsLA.com. He was rushed to Riverside Community Hospital, where he died about a half-hour later. Detective Steve Espinosa said the motorcyclist suffered significant injuries in the impact, though the outlet's report does not specify the nature of those injuries beyond that description.
The driver of the other vehicle was questioned at the scene by patrol officers but was not arrested, and police have not identified that driver. The same report notes the driver did not require medical treatment. The Riverside County Sheriff's Department logged the fatal impact site on the roadway of Martin Luther King Boulevard approximately 53 feet east of Angelo Street under Case No. 260027175, with a final listing posted Sunday, per the Riverside County Sheriff's Department.
Questions About Speed and Fault
The motorcyclist's travel speed remains unconfirmed, and whether excessive speed played a role has not been determined.
The case has been turned over to the Riverside Police Department's Major Accident Investigation Team, a specialized unit of officers, detectives, and collision reconstructionists who rely on field measurements and crash physics to reconstruct fatal collisions, according to the City of Riverside. Riverside police continued their investigation Monday and are asking anyone with information to contact MAIT at 951-826-8723.
Part of a Troubling Pattern at Riverside Intersections
RPD's MAIT investigated a fatal motorcycle crash at West Linden Street and Cranford Avenue on September 19, 2026, that killed 59-year-old rider Steven Pingrey, and on September 24, MAIT responded to a fatal collision at Jefferson Street and Indiana Avenue where a bicyclist was killed by a turning semi-truck.
The demographic profile of this crash also lines up with a troubling statewide trend. A 2025 traffic safety report from UC Berkeley's Safe Transportation Research and Education Center found that male riders aged 25 to 34 made up the single largest demographic group among California's motorcycle fatalities in 2023, accounting for 22.0 percent of all deceased riders statewide, according to UC Berkeley SafeTREC. Statewide, 583 motorcyclists died on California roads in 2023, representing roughly 14 percent of all traffic fatalities despite motorcycles making up a small share of registered vehicles, according to the California Office of Traffic Safety.
Fault determinations in fatal motorcycle crashes require individualized physical evidence review, and no such determination has been announced in this case. Anyone with information about the Saturday crash is urged to call the Riverside Police Department's MAIT unit.
