The Las Vegas Gunman's Eerie Calm

Casino footage shows Stephen Paddock's movements before the massacre.

Casino security footage released after the 2017 Las Vegas shooting shows gunman Stephen Paddock in the days leading up to the attack. The videos depict him calmly gambling and carrying numerous suitcases filled with weapons to his Mandalay Bay suite, offering no outward clues to the horrific act he was about to commit.