So we are again left with the question: how did the killer get this gun? It would seem as though he broke a stack of laws, without much of a struggle. It almost makes you wonder if California is barking up the wrong tree. They pass all these laws, starting with attempts to deal with a mass murder involving a mentally ill person in 1989, and they do not work. Short of house-to-house searches for guns, how are they going to be successful at enforcing these laws? Perhaps most importantly, if someone is mentally ill and intends to murder people (a capital crime), what sort of penalty is going to actually deter such a person from breaking gun-control laws?