in the year prior to the attack, stephen paddock bought dozens of weapons. a gun shop manager says he sold paddock a gun september 20th, the same day he checked into the mandalay bay hotel. i was ill. it made me physically ill to think we had interacted with him and he had committed such a tragedy. the owner says the store did not sell paddock ammunition or any bump fire stocks, the device that automatically engages the trigger, allowing the weapon of fire between 400 and 800 rounds per minute. in 2010, bulb stocks were deemed legal. paddock use them on at least 12 weapons. we have learned the fbi questioning of marilou danley