The claim is marked as mixed because it accurately quotes the gunman's manifesto but makes unverified assertions regarding the cause of his radicalization.
Multiple news outlets, including the New York Post and Mediaite, confirmed that Cole Allen sent a manifesto containing the exact phrase: "I am no longer willing to permit a pedophile, rapist, and traitor to coat my hands with his crimes."
However, the evidence does not support the claim that "legacy media and third worldists" are responsible for his actions or that he was radicalized by them. Allen's own writings cite his Christian faith, his opposition to the administration's foreign policy (such as strikes on Venezuelan drug boats), and the detention of migrants. While he referenced theories regarding the President's ties to Jeffrey Epstein—which have been discussed in various media—the manifesto primarily frames his actions as a personal religious and moral obligation rather than a direct result of media incitement.
Source quality: The evidence includes detailed reporting from multiple reputable news organizations (NY Post, Al Jazeera, Washington Examiner) that provide direct quotes from the suspect's manifesto and details of the law enforcement investigation.