we knocked on the door. castro and his common law wife answered the it door. >> he corrected us and told us he was not joe but lou castro. so he went back to his old identity. >> was he shaky that law the forcement was at his door? >> i didn't think so. >> the officers charged him and searched the it property. what did you find in the house? >> paperer documents. computers. 11 weapons, guns inside the house. >> any smoking guns? >> no. >> emily had been on her way home from school when she got a call from detective goodwin. i said i dont know who you are and he said i'm detective can goodwin. you need come home.