again, james and jennifer crombley are now in police custody.and we are going to go back to our program. we are joining it in progress. >>> scott, said he had proof, a parking receipt from the marina. >> just to prove i was there. that's just -- he was ready. prepared. >> reporter: scott said the pish weren't biting that christmas eve afternoon. so he headed back to modesto and he found the dog with the leash attached, an unlocked back door but no laci. >> took the box out. >> yeah, put it on the counter like it was, glass of milk. then jumped in the shower. >> reporter: he was calm as he spoke. calm, matter of fact, helpful. >> were you calling for laci or -- >> of course i did. >> but she wasn't home. >> no. >> you called her mom's. >> reporter: he answers your questions but he doesn't do anymore than that, right? is that fair to say? >> he has an answer. and he doesn't elaborate, doesn't get emotional. >> reporter: which the investigators thought at the time wasn't necessarily a good thing. >> he told me, oh, that's concerning. i get home and