they're completely shocked by this version of events that matt leili is giving me. >> are any of thems of matt, the husband? >> yes, they were all suspicious of matt. >> nique's daughter alex had lived with her mother and matt until she was 16, and there was plenty she had to say to the detective. >> i wanted him to know what was going on in the house. i wanted them to know i suspected him from the beginning. my mom would have never left her girls. i wanted him to know he would restrain her, lock her in bathrooms. >> why did he do this? the whole thing with the cameras. >> he is just extremely controlling. >> still, despite the family's suspicion and the fact that the semen on nique's body proved to be matt's, the police didn't feel they had enough evidence to make an arrest. >> there is no ankle bracelet on this man. you haven't taken his passport. >> no. >> does anybody say, if you're moving around, tell us where you're going to be. is it that kind of relationship with the authorities? >> no. there is not really a relationship with us. >> what about all the computer evidence, the vi