Maybe this isn't the right place for this but why do we believe that murray gave the benzos when he says he did? He has lied about so many things, why do we believe this? Or do we. What I mean is, he wasn't wearing a watch at the hospital, as I recall reading. And that he said he didn't have any sense of time, or words to that effect.. I don't remember reading if there was clock in Michael's room. So how does he recall so well when he gave the drugs. He doesn't seem to have kept any records.. Although he did have 2 days to recreate a plausible storyline...
As for the flumazenil in the same syringe as the propofol, if he was bolusing the propofol , that syringe would probably have been the most readily accessible for him so panicking, he grabbed it, figured it didn't matter that it wasn't empty, drew up the antagonist and injected.
I can't come up with any other reason.
I also can't understand why he would use Flumazenil when his last dose of any benzo given was almost, I think, 3 hours before for the versed at 0730 and 0500 for the ativan. He had to know that it wouldn't reverse the propofol. Unless he gave Michael a more recent dose of ativan that he's not telling us.