I disagree. When I see Murray in court, I see a ghost of a man. He is obviously very, very shaken by the whole thing. I think he feels incredible amounts of remorse, however while being taken to court it's up to him to fight the case. It doesn't mean that he DOESN'T feel regret or pain or whatever. I think it has more to do with pride.
OF COURSE he is shaken. He was very obviously unprepared for Michael's death. However, as claudiadoina so concisely puts it, his "ghost of a man" demeanour can only be summed up as originating from the fact that he was caught. Nothing about the man suggests an ability to feel concern for others. He has no regard for his own children, whom he has abandoned--why should we expect any regard on his part when it comes to Michael, if he is not even willing to care whether his own children live or die?
If he were intelligent, and if he felt even the slightest bit of guilt for his actions, he would go for a plea bargain. It is evident he is very unwilling to do this, despite his rather inconvenient position. Every day, you see Chernoff, Flanagan, and Baldy scramble to attempt to justify his actions on that day, or contest what the prosecution so solidly has proved is negligence and disregard on Murray's part, not only on 6.25.2009 but before that fateful day as well. More importantly, every day you see them
fail, because they have nothing to work with at all and their client is an arrogant moron.
He only seems shaken and a "ghost of a man" because he got caught--every bone in that man's body is cowardly and criminal. He purposely withheld info. from paramedics, hospital staff, and everyone else, until the po po came knocking at the door. He intended to have Amir drive him back to the house under the excuse that he wanted to hide that vitiligo cream, and wanted him to drive him to get food, but what he really wanted was to hide evidence of his wrongdoing. Knowing all that, if he felt even the slightest bit of guilt...well, he would claim it in court.
This is obviously not the case.
Call me cynical, but all I see from Murray in court are lame attempts to appear "sad," which quickly subside and are replaced with a permanent look of boredom, and the occasional eye/nose picking.

uke: