Recent convert?
Maybe drugs?
With the name “Marcell,” I’m assuming he’s black. But I can’t imagine any reason that even a recent convert would go into a Walmart at 1 am to shoot it up. I’d say he either has mental problems or drug problems.
http://www.valleynewslive.com/home/headlines/BREAKING-Possible-Shooting-At-Grand-Forks-Walmart-304972251.html