Did he say he was fired because he was put on the spot and had not thought of anything yet? How did it come up that he was no longer working?
It almost seems to be too dumb to be possible, that he would say this, how could he not know it would be checked out? We know people make stupid mistakes when they commit even premeditated crimes, thank goodness, but this is just plain idiotic. Did he tell Billie the details about the argument/blow-up or did she feel compelled to add those when she was on the spot, on TV?
This is the main thing that sticks me on "guilty", not the masks or drugs or NY's Eve or even the outside the bedroom door thing. Why did he go to work, and why did he lie to Billie about why he left work?