Gun found on Luigi Mangione matches shell casings at NYC scene: LIVE updates

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Luigi Mangione's journey from Ivy League to murder suspect

Luigi Mangione, an Ivy League graduate from a prominent family, is now at the center of a murder investigation involving United Healthcare CEO Brian Thompson. FOX 5's Arthur Chi'en takes a closer look at Mangione's background and possible motives.

The man accused of killing UnitedHealthcare’s CEO is waging a courtroom battle to avoid facing justice in New York.

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Luigi Nicholas Mangione, a 26-year-old Ivy League graduate from a prominent Maryland real estate family, is fighting extradition from Pennsylvania.

Mangione, charged with second-degree murder in the Manhattan killing of Brian Thompson, CEO of the United States’ largest health insurance company, faces a potential life sentence if convicted.

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'This guy isn't too bright,' former NYPD says about alleged CEO killer

Former member of the NYPD Bill Stanton says Mangione wanted to get caught despite the alleged planning that seemingly went into the murder of CEO Brian Thompson.

On Tuesday, Mangione shouted as he was escorted into court calling his arrest an "insult to the intelligence of the American people" before being subdued and pushed inside.

Authorities have hinted at new details regarding Mangione’s potential motive, shedding light on the shocking ambush that led to his arrest after a five-day manhunt ended at a Pennsylvania McDonald’s.

Retired FBI agent Scott Duffey told FOX News: "He’s 26 years old, which is the year you get kicked off your family’s insurance claim. Was he well insured or not? Those are questions I’d be asking as an investigator."

Here’s a timeline of events, from the deadly shooting to the 911 call that ended the chase.

Wednesday, Dec. 11

Gun found on suspect in killing of CEO matches shell casings at scene: police

2:11 p.m. The Associated Press

The gun found on the suspect in the killing of United Healthcare’s CEO matched shell casings found at the site of the shooting, New York City’s police commissioner said Wednesday.

Suspect Luigi Mangione’s fingerprints also matched a water bottle and a protein bar wrapper that police found near the scene and that officials say the gunman purchased at a nearby coffee shop while awaiting his target, Commissioner Jessica Tisch said at an unrelated news conference.

The 26-year-old Mangione was charged with murder in the shooting last week in midtown Manhattan of Brian Thompson.

Central Park dogwalker finds bag of bullets tied to CEO killing | Exclusive

9:45 a.m. Michael Stallone

A person walking their dog in Central Park found a ziplock bag of bullets in the bushes on Tuesday, which police believe is tied to Luigi Mangione, the suspect accused of murdering UnitedHealthcare’s CEO, Brian Thompson.

Police say the person was walking near East 81st and 85th Street when they saw the bag, noticing writing on it that mirrors markings found on shell casings in Midtown the morning of Thompson’s shooting.

Family of Luigi Mangione says they are ‘shocked and devastated’ by his arrest

7:32 a.m. Adeja Shivonne

The family of Luigi Mangione said they were "shocked and devastated," by his arrest. 

"We only know what we have read in the media," the statement said. "Our family is shocked and devastated by Luigi’s arrest. We offer our prayers to the family of Brian Thompson and we ask people to pray for all involved. We are devastated by this news." 

Tuesday, Dec. 10 

Defense lawyer: ‘You cannot rush to judgment’

Thomas Dickey, the attorney for Luigi Mangione, told the press that he's fighting for Mangione's extradition.

"We have constitutional right. If you believe in America then you cannot rush to judgment," he told the media.

Mangione didn’t appear to say anything as deputies led him to a waiting car outside as he left the courthousel

White House condemns ‘horrific’ killing of UnitedHealthcare’s CEO

White House press secretary Karine Jean-Pierre says "violence to combat any sort of corporate greed is unacceptable" and the White House will "continue to condemn any form of violence."

She declined to comment on the investigation into the Dec. 4 shooting death of UnitedHealthcare CEO Brian Thompson or reports that writings belonging to the suspect, Luigi Mangione, said insurance companies care more about profits than their customers.

"This is horrific," Jean-Pierre said of the fatal shooting of Thompson as he walked in Manhattan.

Mangione denied bail, contested extradition

3:00 p.m. The Associated Press

At the brief hearing, defense lawyer Thomas Dickey informed the court that Mangione would not waive extradition to New York but instead wants a hearing on the issue. He has 14 days to challenge detention.

Mangione, wearing an orange prison jumpsuit, mostly stared straight ahead at the hearing, occasionally consulting papers, rocking in his chair or looking back at the gallery. At one point, he began to speak to respond to the court discussion but was quieted by his lawyer.

Mangione yells at the press

1:58 p.m. Michael Stallone

As police escorted Mangione into a Pennsylvania courthouse, he became irate and yelled at the press.

"This is completely unjust and an insult to the intelligence of the American people. This is a lived experience," he shouted, according to Fox News.

Manhattan prosecutors have obtained a warrant for Mangione’s arrest

12:18 p.m. The Associated Press

The warrant on murder and other charges is a step that could help expedite his extradition from Pennsylvania.

In court papers made public Tuesday, a New York City police detective reiterated key findings in the investigation he said tied Mangione to the killing, including surveillance footage and a fake ID he used to check into a Manhattan hostel on Nov. 24. Police officers in Altoona, Pennsylvania, found that ID when they arrested Mangione on Monday. 

Mangione is being held without bail in Pennsylvania on charges of possession of an unlicensed firearm, forgery and providing false identification to police. 

Late Monday, Manhattan prosecutors charged him with five counts, including murder, criminal possession of a weapon and criminal possession of a forged instrument.
Mangione doesn’t yet have a lawyer who can speak on his behalf, court officials said.

Man who saw shooting suspect in Pennsylvania McDonald's talks to reporters 

12 p.m.  Adeja Shivonne

Larry, a man that says he saw Mangione, told AP: "It started out almost a little bit like a joke. Because my one friend thought he looked like the shooter."

"I think the one worker that actually thought it was him. She said between his eyes and his eyebrows she says, when I took his order, it was like she got in her mind, oh my God. It’s the guy from New York," the man said. 

Mangione hearing scheduled 

11:30 a.m. Adeja Shivonne

A hearing has been set for 1 :30 p.m on Tuesday. 

Mangione expected to be extradited 

10:45 a.m. Adeja Shivonne

PA State Police. 

Pennsylvania State police share photos of Mangione eating at McDonald's moments before being arrested. 

9:00 a.m

Mangione is expected to be extradited to New York City to face murder charges. There's been no word on timing.  

Monday, Dec. 9 — Altoona, Pennsylvania | Luigi Nicholas Mangione arrest

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Luigi Mangione charged with murder in CEO killing

Manhattan prosecutors filed murder and other charges against 26-year-old Luigi Nicholas Mangione, the suspect in the brazen Manhattan killing of UnitedHealthcare CEO Brian Thompson.

9:14 a.m. — Police in Altoona, Pennsylvania, respond to a report of a man matching the suspect’s description at a McDonald’s.

Mangione is arrested on unrelated charges. He was found with a gun believed to be the murder weapon, writings indicating hostility toward corporate America, a mask matching the one used during the crime, and a fraudulent ID identical to the one used at the hostel.

Sunday, Dec. 8 

The Central Park pond search continues, but police decline to comment on developments.

Saturday, Dec. 7 — Divers search Central Park pond

Scuba divers search a Central Park pond, while additional surveillance photos of the suspect in a taxi are released. Despite a fingerprint from the Starbucks purchase and DNA testing, the suspect's identity is still unknown.

Friday, Dec. 6 —  Mangione allegedly takes bus to PA

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NYPD: CEO killer likely left New York City

Police officials say the gunman who killed the CEO of the largest U.S. health insurer likely left New York City on a bus soon after fleeing the scene on a bicycle and hopping in a cab. Chief of Detectives Joseph Kenny says video of the gunman fleeing Wednesday’s shooting of UnitedHealthcare CEO Brian Thompson showed him riding through Central Park and later taking a taxi to a bus terminal, directly across from New Jersey.

Police confirm the suspect likely left New York City on a bus but have no footage showing him boarding. Investigators also recover a backpack believed to belong to the suspect, though its contents remain undisclosed.

Wednesday, Dec. 4 — Shooting timeline

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Manhunt for UnitedHealth CEO's killer enters fourth day

Video taken by Fox News Digital shows officers around a roped-off part of Bethesda Fountain. The usually-crowded part of Bethesda Terrace was nearly empty as police continue their search. FOX 5 NY's Richard Giacovis has the latest.

5:30 a.m. — The suspect leaves the hostel early in the morning.

5:41 a.m. — He is seen pacing near the Hilton hotel on 54th Street and Sixth Avenue, where UnitedHealth Group is hosting its annual investor conference. Police suspect he used a bicycle to get there quickly.

The man stops at a nearby Starbucks, purchasing a bottle of water and an energy bar before heading back to the Hilton.

6:44 a.m. — He shoots Brian Thompson, who was arriving at the conference alone, and flees the scene.

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Manhunt for CEO’s killer focuses on hostel where suspect may have stayed.

The NYPD released new images of a person of interest in the ambush-style killing of the CEO of one of the largest health care companies in the world. FOX 5's Meredith Gorman has the latest.

6:48 a.m. — The suspect enters Central Park on a bicycle through the 60th Street and Center Drive entrance, where police believe he ditches a gray backpack.

6:56 a.m. — He exits the park at West 77th Street and Central Park West, still on the bicycle.

6:58 a.m. — He passes another surveillance camera at 85th Street and Columbus Avenue.

7 a.m. — The suspect is seen at 86th Street without the bicycle.

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NYPD: CEO killer likely left New York City

Police officials say the gunman who killed the CEO of the largest U.S. health insurer likely left New York City on a bus soon after fleeing the scene on a bicycle and hopping in a cab. Chief of Detectives Joseph Kenny says video of the gunman fleeing Wednesday’s shooting of UnitedHealthcare CEO Brian Thompson showed him riding through Central Park and later taking a taxi to a bus terminal, directly across from New Jersey.

7:04 a.m. — He hails a taxi at 86th Street and Amsterdam Avenue, heading north.

7:30 a.m. — He is near the George Washington Bridge Bus Station, which offers routes to various cities, including Philadelphia and Washington, D.C.

At the scene of the shooting, investigators discover ammunition marked with the words "delay," "deny," and "depose"—a phrase often associated with criticisms of the insurance industry.

Friday, Nov. 29 – Suspected shooter checks out of hostel

The hostel automatically checks him out after he misses the check-out deadline. Police don’t believe he stayed elsewhere and think he re-checked into the same hostel later.

Sunday, Nov. 24  – Shooter arrives in NYC

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Hunt for CEO killer

As the search for UnitedHealthcare CEO Brian Thompson’s killer stretches into a fourth day and beyond the New York City limits, investigators are reckoning with a tantalizing dichotomy. They have troves of evidence, but the shooter remains an enigma.

10:11 p.m. — The suspected shooter arrives at the Port Authority terminal on a Greyhound bus from Atlanta. Police are unsure where he boarded the bus, which made several stops along the way.

From the terminal, he takes a taxi to the New York Hilton Midtown, where he lingers for about 30 minutes before heading to the HI New York City Hostel on Amsterdam Avenue. At the hostel, he uses what police believe is a fake ID to check into a shared room with bunk beds. His roommates never saw his face because he kept his mask on.

While in the lobby, he briefly pulls down his mask to smile at an employee—a moment captured on surveillance footage and widely circulated by police.

Luigi Mangione background

Authorities said Mangione was born and raised in Maryland, and he was the valedictorian in the 2016 class at Baltimore’s private Gilman School. In his graduation speech, he talked about his classmates’ "incredible courage to explore the unknown and try new things," the Associated Press reported.

"Quite honestly, he had everything going for him," said Freddie Leatherbury, a former classmate. Leatherbury described Mangione as a smart, friendly and athletic student who came from a wealthy family, even by the private school’s standards.

He earned undergraduate and graduate degrees in computer science in 2020 from the University of Pennsylvania, a spokesman told The Associated Press on Monday.

Written with the Associated Press.