LATEST NEWS: 64-year-old Stephen Paddock of Mesquite, Nevada, fired from the 32nd floor of the nearby Mandalay Bay hotel into a crowd at the Route 91 Country Music Festival.
Officers found at least eight weapons, including multiple long rifles, in Paddock's room.
50 people have been killed and 406 have been sent to area hospitals. Vegas officials are asking for blood donations.
WHAT YOU CAN DO TO HELP: Donate to We Are Blood. They have three locations in the Austin area.
AUSTIN NORTH: 4300 N. Lamar Blvd Austin, TX 78756 (512)-206-1266
ROUND ROCK: 2132 N. Mays, Suite 900 Round Rock, TX 78664 (512)-206-1266
AUSTIN SOUTH: 3100 W. Slaughter LaneAustin, TX 78748 (512)-206-1266
More information and to make donation appointments visit We Are Blood's website.