In the movie, Ben Affleck plays an aloof loner who kills. He has all kinds of reclusive tendencies & LOTS of guns. But he ends up a "good guy",not bad. Nonetheless, I could imagine it might plant ideas in somebody's head, especially somebody like an accountant. Ironically, Ben Affleck in real life, apparently is, or was, a bit of a gambler success.
http://www.aljazeera.com/news/2017/10/las-vegas-shooter-stephen-paddock-42-arm-arsenal-171003084823664.html
JESUS HEALS!