common. whatever issues he had. he was known since 2008. the shia community, when he was still a shia, you know, urged the police to investigate him. they passed on information to the authorities, as we would expect the cooperating group to do. and you know, i share the concern of others when they say that it could have possibly been an intelligence failure. but again, it's impossible to know when this individual is going to act. just short of monitoring somebody 24/7, there's really nothing else you can do. >> mubin, richard, daveed, thank you all of you gentlemen. from the lone wolf australian attack to the viejs at home. tonight philadelphia police are looking for someone accused of killing six people. bradley william stone of penzburg, pennsylvania. he's accused of killing his ex-wife and five of his former in-laws. police describe stone as armed and dangerous. and late tonight they descended on nearby doylestown,