That was the first thought Omid Safi says went through his head when he saw news about the deadly shooting attack in Chattanooga on Thursday.

Then came a familiar sinking feeling. “Not because the suspect is Muslim,” says Safi, who directs the Islamic Studies Center at Duke University. “When there is an act like this, it tends to undo all of the good work that has taken place in the community over the last years and months, and in particular in the month of Ramadan.”