But who has an alibi between 1am and whenever? Not saying I believe JM is not the perp, as he certainly appears to be, but I know I am alone at night from 7pm-4am most night since my husband works nights and never have a solid alibi, or "proof" of anything and my family certainly wouldn't have it for me.
Lots of people these days, even night owls. Texting, phone calls, posting on facebook - anything to show where you were. Heck, even checking facebook when he got home for the night would give him an alibi if that were 15 minutes after he left Tempo. I bet LE knows he didn't do any of that. IMO, of course.