The article says that the American had moved there with his wife to run an orphanage. I doubt that it was for the UN. He was probably a Christian.
Regardless of why they were there, they had every right to be there and not to be killed. Just like the people of Paris had every right to go to a nightclub without being killed.
Islamic terrorism is the problem, not where people choose to go, and in any case, Islamic terrorism can come looking for you no matter where you are, including right at home.
Of course. However, I was surprised to see that so many of the victims were foreign to Burkina Faso, and so I read the article and learned that the targeted site was frequented by UN and charity personnel.
The orphanage operator and his wife came from a church in Florida.
Naive is no excuse.