Key details to know about the arrest of the suspect in the killing of UnitedHealthcares CEO [Video]

Police arrested a 26-year-old man on Monday in the Manhattan killing of UnitedHealthcare’s CEO after they say a Pennsylvania McDonald’s worker alerted authorities to a customer who resembled the suspected gunman.

The suspect, identified by police as Luigi Nicholas Mangione, had a gun believed to be the one used in Wednesday’s attack on Brian Thompson, as well as writings expressing anger at corporate America, police said.

Here are some of the latest developments in the investigation:

Where was the man captured?

Mangione was taken into custody at around 9:15 a.m. after police received a tip that he was eating at a McDonald’s in Altoona, Pennsylvania, about 85 miles east of Pittsburgh, police said.

Mangione was being held in Pennsylvania on gun charges and will eventually be extradited to New York to face charges in connection with Thompson’s death, said NYPD Chief of Detectives Joseph Kenny.

What evidence did police find?

In addition to a three-page, handwritten document that suggests he …