Eventually, they determined that a Buick, driven by a 73 year old woman from Monterey, was northbound in the 400 block of Lighthouse when it sideswiped a Federal Express truck parked along the right curb. The Buick continued northbound on Lighthouse and ran the red light at McClellan, hitting a utility truck.
The Buick continued northbound on Lighthouse and ran into the rear of a Lexus SUV, which was pushed into a small bus that had six passengers. The Buick ended up flipping on its side and came to rest facing southbound.
Tadaaa!