and the problem is people apparently don't see enough tragedy to do anything about it. >> there's a fine balance here, protecting constitutional right to have weapons by some, but then we know that tlr bad actors, hostile actors that could care less about the constitution engaging these acts. that's what the challenge is for law enforcement, how do you protect constitutional rights on one side while enforcing the law on the other and preventing these acts of violence by those who really could care less about the laws that we have. they're focused on the violent act. >> that's exactly right. let me bring in josh campbell. josh, there are more questions than answers, of course. one thing that law enforcement is clearly wanting to get at is motive. we heard the deputy during the press conference say, if you have any information, it can be anonymous, please contact the santa clara sheriff's department to provide that information. they don't have a suspect that they can interview now because