Suspected gunman Cole Tomas Allen, a 31-year-old California-based tutor and amateur video game developer, was arrested for the shooting at the White House Correspondents' Dinner targeting President Donald Trump and several US officials.
Allen allegedly made an anti-Trump manifesto and sent it to his family member minutes before opening fire at the gala venue on Sunday.
In the manifesto, Allen described himself as "Friendly Federal Assassin" and railed against recent actions taken by the US government under Trump, though he did not name the Republican president directly.
Towards the end of the alleged manifesto, Allen wrote: "Oh and if anyone is curious is how doing something like feels: it's awful. I want to throw up; I want to cry for all the things I wanted to do and never will, for all the people whose trust this betrays; I experience rage thinking about everything this administration has done."
Multiple shots were fired during the White House correspondents' dinner on Saturday night, prompting evacuation of President Trump and other senior officials of the Trump administration.
He escaped unhurt. The incident occurred during the White House Correspondents' dinner, where hundreds of prominent journalists, celebrities and national leaders were present.
