Well, at first I thought I was wrong about Deb dosing herself with the Xanax, since Hannah sort of admitted it to Dexter. But then when Deb told Hannah, "confess what you've done" and Hannah responded, "I will if you will" and then "all that Xanax, my how you must have trouble sleeping at night". That sounds like Hannah saying she suspects that Deb did it to herself. But Hannah could just have meant that Deb had a big bottle of Xanax that came in handy when Hannah dosed her. But the part about Deb needing to confess what she has done fits better with Deb dosing herself rather than with Deb knowing Dexter is a killer and not turning him in. I guess I now have no idea who did it. The part about the warrants to "track the GPS" on Dexter and Deb's phone was hard to believe. I have never heard that the cell phone companies keep records of everywhere that the cell phones have been. Sure, they can probably locate a powered-on cell phone NOW if they needed to, but to keep complete records of everywhere someone has been? I don't think so. I could accept that it is routine for police to wear something that allows their position to be tracked (and have something in their car), but that does not apply here since (1) no warrant would be needed and (2) Dexter would definitely not have anything like that (not sure about Deb). That was a highly unsatisfying way to end the season. Dexter's plan for LaGuerta was okay (although he should have stabbed Estrada with something like an icepick), except that she had to be shot with Estrada's gun. Now that LaGuerta was shot with Deb's gun, that plan is...well...shot to hell. It would hardly be credible for Deb to claim that she found LaGuerta just after she shot Estrada and then when LaGuerta began to point her gun at Deb, then Deb shot LaGuerta. Since that story cannot work, the only thing I can think of is that both bodies need to disappear in Dexter's usual manner. Except that takes time, and we saw Dexter and Deb returning to the party at a not unreasonable hour. And when LaGuerta disappears, with her car known to have been at the port, and Deb having just called in for that information, and the conflict between LaGuerta and Dexter....LaGuerta's disappearance bodes ill for the Morgans. On second thought, maybe Deb could claim exactly what I just wrote. The story could be that LaGuerta was obsessed and wanted to frame Dexter for killing Estrada, so she shot Estrada just as Deb came in, and Deb shot LaGuerta in self-defense.