Cole Tomas Allen, 31, is the suspect in the shooting incident at the White House Correspondents' Dinner. He authored a manifesto expressing his intention to target administration officials, which was discovered by authorities after the attack. The manifesto contained anti-Trump and anti-Christian sentiments and criticized the lack of security at the Washington Hilton, where the event was held. Family members informed police about Allen's radical views and writings prior to the attack, prompting concerns about his mental state. He had legally owned two firearms, one of which was used during the incident. Allen's family revealed that he regularly practiced at shooting ranges and was associated with a group called 'The Wide Awakes.' His writings included alarming statements about his willingness to commit violence to address perceived injustices, raising serious questions about his motivations and the effectiveness of security measures at high-profile events.