Sounds like he was a POS up to the very end by choosing his brother's home as the place to blow his brains out (leaving his brother's family to clean up the bloody mess). And for all their troubles, he didn't even have the decency to stash the $17K in cash in a drawer somewhere for his brother to find, instead keeping it on his body for the cops to undoubtedly confiscate.
Good point.
Why did he go to his brother’s?
Maybe the original plan involved placing suspicion on his bro?