Thousands of people attend a vigil in the wake of the Orlando shooting, held in downtown Orlando at Dr. Phillips Center for the Performing Arts. Friends of Amanda Alvear and Mercedes Flores embrace, cry and show their support for friends lost in the Pulse Nightclub shooting. A gunmen opened fire in a gay nightclub in Orlando, Fla. early Sunday morning killing 49 people and wounding 53 more. It's being called the worst mass shooting in U.S. history.