He then carjacked a woman on Filmore Street who was driving her child.
Police said a sheriff's deputy spotted the auto a short time later on a nearby highway.
Matt Marion of Bakersfield is a truck refrigeration mechanic who works at a business across the street from where the first two homicides happened.
He then hijacked a nearby vehicle with a mother and child inside, and headed toward the highway. When confronted, he turned the gun on himself and killed himself, reported WP TV.
About 30 people saw the shootings and were being interviewed by deputies, Youngblood said.
"This is the new normal if you look across the country at these types of shootings", Youngblood said. The suspect died after he shot himself in the chest, according to reports. The gunman's relationship with most of the victims is also unknown.
"It's very unusual to have six people killed in one incident", he continued.
The identities or a motive have not yet been revealed for the shootings in Bakersfield, 90 miles north of Los Angeles.
The fact that the gunman spared the woman and her baby after commandeering her auto indicates to investigators that he may have had a reason for shooting the people he did, according to authorities.