A BAG filled with bullets believed to be linked to the suspect accused of killing UnitedHealthcare's chief executive has been found in Central Park, according to reports.
Luigi Mangione is being held in Pennsylvania without bail as he fights his extradition to New York City, where he is facing second-degree murder charges related to the December 4 killing of Brian Thompson in Midtown.
Mangione, 26, had a wild outburst moments before his court hearing on Tuesday, blasting his arrest as an "insult to Americans" as a judge denied his request for bail.
On Wednesday, investigators revealed that fingerprints on a discarded water bottle found near the scene of the assassination outside of the Hilton hotel matched those of Mangione, according to ABC News.
The news of a positive forensic match came after Fox News reported a dogwalker uncovered a tightly seals ziplock bag filled with bullets in the bushes in Central Park on Tuesday.
The person was walking near East 81 and 85 Street when they saw the bag and noticed writing on it that echoed engraved markings found on shell casings at Thompson's murder scene.
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Investigators believe Mangione scribbled the words "deny," "depose," and "defend" on three bullet shell casings.
The message is similar to a 2010 book, Delay, Deny, Defend: Why Insurance Companies Don't Pay Claim and What You Can Do About It, written by insurance law expert and Rutgers Law School professor Jay M. Feinman.
Mangione was arrested on Monday while eating at a McDonald's in Altoona, Pennsylvania, about 280 miles west of the Hilton hotel in Midtown, Manhattan, where Thompson was killed.
An employee at the McDonald's who took Mangione's order called Altoona police after recognizing the alleged assassin from the suspect's wanted posters out of New York.
When confronted by cops, Mangione presented a fake New Jersey identification, which investigators suspect was the same document he used to check into a hostel in the Upper West Side before Thompson's killing.
Mangione became nervous and began shaking when Altoona police asked if he had recently been to New York.
Authorities also found a ghost gun, silencer, several other fake IDs, and a three-page handwritten manifesto on Mangione's person.
The suspect also had a backpack with $8,000 in US currency and $200 in foreign cash, according to an arrest report.
Police described Mangione's bookbag as a transmitter blocker that hinders cellphone signal to avoid detection.
However, during his initial court appearance on Monday evening, Mangione slammed the arguments from police and instead claimed someone planted the money.
The suspect also said his backpack was waterproof and did not block cellular signals.
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