From USA Today:

An American kindergarten teacher was fatally stabbed in a public restroom at a shopping mall in Abu Dhabi by a suspect wearing a black robe and full-face veil, police said.

The attack on Reem Island in the United Arab Emirates on Monday came a little more than a month after the U.S. Embassy in Abu Dhabi warned Americans of an online posting that encouraged attacks against teachers at American and other international schools in the Middle East. There’s no evidence the mall attack was related to the threat.