The killer was a Muslim refugee from Bosnia, his tragic tale of leaving his country is told here. Was he radicalized by fellow Bosnian Muslims? We’ll never know for sure if, as this article claims, he rarely interacted with anyone. Here’s a quote from his neighbor:

“Me or my family, or pretty much anybody on my side of the street never came in contact with Sulejmen or any of his friends or anything like that. So to hear that this happened is somewhat shocking because you really didn’t know who he was”

Another concerning development, authorities have yet to determine where he acquired the firearms used in the killing spree. As a legalized resident over 18 he could have purchased them, but for authorities to mention this piece of information seems to imply that they may be looking for co-conspirators, or a weapons cache. As a gun owner myself, I know that the state has a record of your firearms purchases. The question is are investigators just slow to check the records, or did some third party arm Talovic for his rampage?