It’s not only possible, but likely, that this guy broke all the rules of Islam: ate pork, drank alcohol, chased women, chased men, didn’t pray or go to mosque, etc. This type of damaged goods gets contacted and shamed by jihad recruiters who call him an unclean beast, no better than a kafir, hell-bound, ----and then they tell him the only way to save his filthy soul and redeem his worthless life is to do something really, really, really BIG so Allah will love him and all his sins will be absolved.
"Fight ‘in the way of Allah’! Kill unbelievers! Die a shahid! And gain Paradise!"
That’s the way it works. It’s how Muslim wastrels and slackers think they’ll gain eternal glory.