Via LA Times:
A woman was killed and five people were wounded early Monday when a man opened fire on a Greyhound bus traveling on Interstate 5 through Kern County, authorities said.
Several passengers on the bus en route from Los Angeles to the Bay Area called police to report an active shooter shortly before 1:30 a.m., California Highway Patrol Sgt. Brian Pennings said.
It is not clear why the gunman opened fire on the bus. After the shooting, the driver pulled to the right shoulder of the freeway, and the shooter voluntarily got off the bus, Pennings said, leaving behind a black handgun.
“The driver of the bus immediately pulled to the right shoulder and somehow — we’re still trying to figure out how this happened — were able to coerce the suspect off of the bus,” Pennings said, calling the driver’s action’s heroic.