Cole Thomas Allen, the 31-year-old suspect in White House Correspondents' Association dinner shooting' had allegedly sent an anti-Trump manifesto to the family, just 10 minutes before opening fire.

According to a report by New York Times, citing US a official, he sent what is described as anti-Trump manifesto. The document was later handed over to the police by a relative.

The suspect had allegedly signed the document with the name "Cole 'coldForce' 'Friendly Federal Assassin' Allen." In his purported manifesto, Allen outlined his targets in the Trump administration, ranked by seniority. However, he had excluded FBI Director Kash Patel from the list.

"Administration officials (not including [FBI Director Kash] Patel): they are targets, prioritised from highest-ranking to lowest," the manifesto read, as quoted NYT.

"In order to minimise casualties, I will also be using buckshot rather than slugs (less penetration through walls). I would still go through most everyone here to get to the targets if it were absolutely necessary (on the basis that most people chose to attend a speech by a paedophile, rapist, and traitor, and are thus complicit), but I really hope it doesn't come to that," he wrote.

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In the said document, Allen reasoned his action as a response to "suffering of others" and not as an aggression.

"Turning the other cheek when someone else is oppressed is not Christian behaviour; it is complicity in the oppressor's crimes."

"I am no longer willing to permit a paedophile, rapist, and traitor to coat my hands with his crimes," Allen wrote.

The statement indicates towards allegations levelled against the US president over the Epstein Files.

Allen called security lapse at the event as "arrogance", saying, "Like, the one thing that I immediately noticed walking into the hotel is the sense of arrogance. I walk in with multiple weapons and not a single person there considers the possibility that I could be a threat".

Allen added, "Like, if I were an Iranian agent, instead of an American citizen, I could have brought a damn Ma Deuce in here, and no one would have noticed shit. Actually insane."

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What did Allen's family say?

According to the report, Allen's brother was the first to raise the alarm as contacted the New London, Connecticut, police department after he received the purported document.

The US Secret Service has also questioned Allen's sister, who lives in Maryland's Rockville. According to reports, she had told the officers that he had a history of making politically radical remarks.