He may have been a hit man. The story about real estate and gambling winnings is a laughable joke. Pure money laundering. Look at his tax returns and you’ll see exactly when he joined an organized crime unit. He was probably paid to make a hit and ordered to make a room full of weapons. His sleeping problems may have been a guilty conscience
He did not think he would die doing this.
I suspect the electronic vacuum cleaners are running full bore trying to locate the enablers.
Police will be silent for a while.