Survivor Matt Sitler’s family members are revealing new details in the deadly Grand Sierra Resort shooting on Monday morning.

Three people are dead and three others wounded by gunfire after a man opened fire with a handgun outside the Grand Sierra Resort Casino in Reno Monday morning, police said.

A 10-second video recorded by Jimmy Garcia of Reno is the only public glimpse so far of the suspect in the Grand Sierra Resort shooting that killed three on Monday. The video, confirmed by Sparks Police to be of the suspected shooter, has gone viral, with hundreds sharing it and thousands viewing it online.