A terrorist and a cheap bastard. You can't raise a child on a measly $15K
He and his wife might have been hedging their bets.
* If they were killed, their baby would have the Prosper loan dollars.
* If they got caught, their mother would have money to help hire a lawyer... I think funding bail might be out of the question, but when you go that far off the deep end, who knows what is going through his mind.
* If they didn't get caught, but were identified or suspected, the mother might have been able to help funnel the money back to them, or secure other needs such as a plane ticket, alternate identity pictures, car, hotel or other arrangements to help get them out of the US.
* If they got off scott free, no harm, no foul.
I wonder what he told his mother was the reason for transferring that money into her account.