Article continues below advertisementThe White House Correspondents' Dinner is one of Washington's most star-studded events, but new footage from this year's shooting has exposed how even the most high-profile gatherings can unravel in seconds.Surveillance video shows the suspect, identified as Cole Allen, rushing past a checkpoint and pointing a shotgun at a Secret Service agent stationed near a magnetometer. The agent fired multiple times as Allen stumbled and was ultimately apprehended. The agent was struck in the chest but survived thanks to a bulletproof vest.