As much as we all wish someone would beat Lucas' ass and steal his stuff, I don't think he's ever been robbed by Isaac and friends. I think the reality is Lucas just spent all his money because he's a retard. He wastes all his cash on junk food and weed with Isaac and any other bums he thinks he can impress with his welfare, and ends up going radio silent if anything goes wrong, like losing his charger or pants, because he's that bad with handling his money. He'll probably be back to reeing at his phone when he has money to buy a new charger for his phone to use at the shelter. As someone pointed out earlier, Lucas is sadly one of those bums that somehow manage to cling to life long after their lifestyle should have caught up to them, and despite his numerous poor life choices, he'll likely outlive this site