Brian Thompson assassination suspect is NAMED by police after being detained with trove of chilling evidence: Detectives reveal details of handwritten manifesto

The man being questioned by cops in Altoona in connection with the murder of CEO Brian Thompson has been identified as Luigi Mangione, 26.

Three law enforcement officials gave the name to the New York Times.

Mangione was detained as a person of interest at a McDonald’s in the Pennsylvania city on Monday morning.

He has not been charged in connection with the shooting.

The 911 caller who potentially identified the gunman at the Altoona McDonald’s was an ‘elderly patron’ according to an anonymous law enforcement official speaking with the New York Times.

They called cops around 9.15am on Monday after spotting the man they believed matched surveillance images of the gunman shared by police.

An anonymous law enforcement official said the man detained in an Altoona used the same fake New Jersey ID as one the alleged gunman presented in a New York City hostel.

They told the New York Times it matched the ID presented to the hostel on the Upper West Side of Manhattan on November 24, when the shooter is believed to have arrived in the city.

The manifesto found on the man detained in Altoona was handwritten and criticized health care companies for putting profits above care, an anonymous law enforcement official told the New York Times.

No further details about the manifesto have been given so far.

The alleged assassin has only been seen in grainy surveillance images so far, and police are yet to make an arrest or release a suspect identity.

Read DailyMail.com’s coverage exploring everything we know so far about Thompson’s killer.