admit what he'd done -- provide what lawyers call a proffer. if i could take it back to the he was brought to a conference office, and download it. room at the prosecutors office. he agreed to let me do that. >> how'd he present himself? >> when was the first time that >> calm. this idea came about? >> i've known sirius underwood >> he claimed he didn't know for a while we were havin' a conversation one day at -- at brandy was killed. his apartment. just calm, cool, and collected. >> reporter: sirius came to the and i was tellin' him about, how sheriff's office. hard this was on me -- me and >> we'll put it in airplane mode. brandy splittin' up. >> reporter: while the squad's how pissed off i was that -- phone expert examined his cell, sirius explained how he knew brandy's husband josh. >> we went to zane state together. >> okay. >> i worked out with him and that she was seein' that guy, craig. stuff like that. >> reporter: he said he hardly knew brandy. >> i didn't, like, meet her meet her, i seen her one time. >> reporter: as for his pal josh up in alaska? sirius said they hadn't been in contact for a while. >> when was the last time, he sent you a text, he called you? and -- he made the comment, >> i'll say about two or three weeks ago. >> it was not this week? >> i didn't talk to him this week, no. >> reporter: sirius said he'd been with his girlfriend around