Re: Sounds like he was a dick but...
I can see we share follow the same logic in escape route planning, you've got most of my points too ;-)
For the corpse, it's probably an advantage if it can be left somewhere it's going to have time to decompose enough to confuse the investigators, so could be left to defrost on it's own. Really though, you need somewhere warm, preferrably with sharks/alligators to take the blame.
Think I might be watching too many heist movies...