Luigi Mangione carried out the killing motivated by deep anger and ideological disdain against the health insurance industry and corporate greed as a whole. His diary and handwritten notes reveal that he viewed the health insurance sector, epitomized by UnitedHealthcare and its CEO Brian Thompson, as "parasitic" and emblematic of broader social injustices. Mangione's actions appeared to be a "symbolic takedown" intended to highlight what he perceived as corporate corruption and exploitation in healthcare, fueled by personal grievances including a back injury that brought him into contact with the healthcare system. His writings also show influence from the Unabomber Ted Kaczynski's manifesto, endorsing violence as a justified form of self-defense against such systemic issues, while consciously avoiding indiscriminate harm to innocents. He wanted his act to resonate publicly as a protest against corporate power and healthcare inequalities.
In summary, Luigi Mangione did it as an ideologically motivated attack aimed at exposing and striking back at what he saw as the corrupt health insurance industry and corporate greed, symbolized by the UnitedHealthcare CEO.
