The Glendale mariscos and steak restaurant was thrust into the national spotlight after a shootout in its parking lot killed three people.

NBC affiliate KPNX of Phoenix reported that the restaurant El Camarón Gigante was holding a Cinco de Mayo party at the time.

A fatal mass shooting in Glendale was isolated, police said. And it's one of dozens in the U.S. so far this year. But reputational concerns remain.