The mass shooting at gay nightclub Pulse in Orlando early Sunday morning, the worst in U.S. history (and there are many), has affected so many people and resulted in so many heartbroken friends and family. The massacre, which left 49 people dead and at least 53 more wounded, took place on Latin night at the gay club, during Orlando's Pride Week. One of the victims, a man named Luis Vielma, worked at the Wizarding World of Harry Potter at Universal Studios, running the “Forbidden Journey” ride. On Monday, JK Rowling tweeted a picture of Vielma.