I totally understand how somebody might look at that situation and say "gee, he did only rob a bank because the guy who died was his accomplice", but at the same time... he robbed a bank! Had he not robbed it, that life might not have been lost and a body would not have been taken from the scene of a crime.
If you want to argue that the quality of one's lawyer plays a large part in the charges, hell, I agree with you and I think that sucks. But, I'm not about to toss out the legal system because a criminal had a shitty time in court. Fuck this guy.