Suspect in UnitedHealthcare CEO Shooting Detained in McDonald's After Employee Found Him Suspicious: Police

Mar. 15, 2025

The man suspected of fatally shooting UnitedHealthcare CEO Brian Thompson has been detained, police sources tell PEOPLE.

Altoona authorities were holding the man for questioning as of noon on Monday.

A law enforcement source tells PEOPLE the suspect had a “manifesto” on his person when he was detained.

The source says the suspect allegedly used the name “Mark Rosario” on his fake ID.

Brian Thompson; New York Police Department (NYPD) officers outside the New York Hilton Midtown in New York, US, on Wednesday, Dec. 4, 2024. Brian Thompson, a longtime UnitedHealth Group Inc. executive, was fatally shot in midtown Manhattan early Wednesday morning in what authorities described as a targeted attack that sent reverberations across the city and corporate boardrooms globally.UnitedHealth Group; Yuki Iwamura/Bloomberg/Getty

UnitedHealth Group; Yuki Iwamura/Bloomberg/Getty

Police say the suspect escaped the scene on a bicycle, with the tail being lost in Central Park.

An alleged motive has not yet been established, but on the bullet casings found at the scene,authorities discovered engravingswith the words “deny,” “defend,” and “depose.”

source: people.com