Mangione's interest in Kaczynski's ideas, coupled with his own violent actions and a handwritten manifesto denouncing the healthcare industry, raises concerns about the potential influence of Kaczynski's ideology.
David Kaczynski, Ted Kaczynski's brother, expresses concern that his brother's actions might inspire others to violence. He emphasizes that while Ted Kaczynski's ideas about technology's negative impacts may resonate with some, violence should never be a means to achieve change.
Mangione's handwritten manifesto, which stated, "These parasites had it coming," indicates a belief that his actions were justified. This echoes the Unabomber's own justifications for his violent acts, as detailed in his manifesto.