NEW YORK - 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.

FOX 5 NY has exclusively learned that 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.

The writing references “deny defend,” echoing a phrase used to describe how insurers dodge claim payouts

The NYPD is continuing to build its case against Mangione as he wages a courtroom battle to avoid facing justice in New York.

Before his arrest, investigators found “bizarre” engravings on the bullet casings left on the scene — the words “deny,” “depose” and “defend,” according to law enforcement sources.

It’s unclear at this time whether the bullets found by the passerby had any engravings.

This is a developing story. Check back for updates.