Looked to me like Kellerman was whacked, and that he was expecting it. He must've known that the Company or Corporation or whatever they call themselves was pissed at his spilling the beans, and he was expecting to get whacked. He was a little loony at the end with the botched suicide and all. At least this way, he got to die with honor -- even though the bros are still in deep doo-doo. Interesting, though, that it looks like Linc might have to mastermind a Panama prison break. Michael just doesn't have any more space on his bod for a second set of tats.