The company hires lots of Somalis. Most of them do a really good job. I can say from experience (when I worked on the floor there) that there are quite a few angry Muslims there. I don't know if many of them would do something like this though, and everyone who worked with him wouldn't have expected this from him. A few of them wouldn't surprise me if they did. I never worked with this guy though, so I can't comment from personal experience.
I knew quite a few who I used to debate with who felt everything was a Zionist plot. Yes, EVERYTHING, not just Palestine. Many of them you could have an incredibly intelligent conversation with, but a few wouldn't listen to anything (like most other people.)
To be fair, there were many completely level headed Muslims there as well.