more house searches were conducted today. one of two arrested yesterday on suspicion of conspiracy of murder was released but one is still held along with the two attackers. police are now said to be very concerned about copy cat attacks. reportedly they're picking up more terror chatter. we're seeing more video of that police response to the attack. security services reportedly tracked the two at least six years. among their activities. attendance at radical islamic aims and wanted for terror aims. they didn't act against the two because it appeared they weren't going to act but in fact we saw wednesday they possibly did. the outpouring of grief continues for the slain soldier, lee rigby. there was a very emotional press conference of family members. here's what his wife had to say. >> i just wanted to say that i