Cole Allen, the White House Correspondents' Dinner shooting suspect, has written an anti-Trump manifesto criticising the lack of security on his cross-country journey. He claimed that he expected security at all levels, including in transport, hotel, and even the event itself. The manifesto was sent to his family ten minutes before the attack and suggested that he might have brought a weapon similar to the M2 Browning.50-caliber machine gun. Allen was eventually subdued and arrested after exchanging gunfire with agents.