Unfortunately an attempted murder charge in California requires that he actually intended for somebody to die (not just be horribly injured -- he has to have intended to kill somebody). It's easier to prove murder than attempted murder, ironically. If someone had died, he could be convicted of murder just for trying to hurt someone or for being grossly reckless. If nobody dies, you can't get to attempted murder unless you can prove that he was trying to kill them, which is harder than it sounds.

It sure sounds like assault with a deadly weapon or by means likely to produce great bodily injury, though, with a couple of great bodily injury enhancements for the two victims. This guy needs to go to prison.