Federal prosecutors seeking the death penalty for Luigi Mangione, the accused killer of UnitedHealthcare CEO Brian Thompson, claim in a new filing that his actions helped inspire last month’s mass shooting at NFL headquarters in New York City.

“Simply put, the defendant hoped to normalize the use of violence to achieve ideological or political objectives,” prosecutors wrote in a filing in Manhattan federal court, according to ABC News on Friday.

They pointed to parallels between Thompson’s December 2024 killing and the July 28, 2025, attack on the NFL office, which occurred just blocks from where Thompson was shot. The filing said Mangione sought a crime that would resonate beyond Thompson and stoke public anger at the health insurance industry.

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