A California Highway Patrol cadet died Sunday in a collision on Interstate Highway 5 at West Benjamin Holt Drive in northwest Stockton.

The mishap, during an anniversary celebration for the Marine Corps attended by the vice president and defense secretary, underscores safety concerns that Gov. Gavin Newsom voiced before Saturday’s event at Camp Pendleton.

While no one was hurt, experts say the decision to fire live munitions over the freeway during the ceremony was highly unusual.

I-5 closes 11 a.m.–3 p.m. for Marine Corps 250th anniversary live-fire demo at Camp Pendleton; expect major SoCal traffic delays.

Artillery rounds also were launched over the freeway during a rehearsal for the demonstration attended by Vice President JD Vance and Defense Secretary Pete Hegseth.

A driver who died after a crash along Interstate 5 in Stockton over the weekend was a California Highway Patrol cadet, the agency said.

And after a half-day of back-and-forth between Gov. Gavin Newsom and the White House, it seems as if all talk of shutting down Interstate 5 in California will not take place.

Rounds were fired on Friday across Interstate 5 as part of a test run for Saturday’s event at Camp Pendleton in Southern California.