>> he claimed he didn't know brandy was killed. just calm, cool, and collected. >> reporter: sirius came to the sheriff's office. >> we'll put it in airplane mode. >> reporter: while the squad's 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 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? >> 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 the time cops believe brandy died. >> and went to my girlfriend's house and i kind of stayed the night there. >> reporter: officers returned sirius's iphone and thanked him for coming in. wendy lemon, the girlfriend in sirius' alibi, was next up on the detective's list of people to talk to. wendy, a mother of five, said she met sirius a couple of years