Luigi Mangione, the 26-year-old charged with killing UnitedHealthcare CEO Brian Thompson, has reportedly retained a former prosector and ex-CNN legal analyst as his attorney.

Mangione has hired Karen Friedman Agnifilo, once a veteran prosecutor in the Manhattan District Attorney’s Office under Cyrus Vance Jr. before going into the private sector, to represent him in New York, CNN reported on Friday.

The suspect remains in custody in Pennsylvania on gun-related charges and is fighting extradition to New York, where he has been charged with second-degree murder.

HuffPost has reached out to Friedman Agnifilo for comment.

The news comes as officials have found new evidence including a 3D-printed gun that Mangione possessed at the time of his arrest in Pennsylvania that matched three shell casings found at the Manhattan crime scene, according to New York City Police Department Commissioner Jessica Tisch.

His fingerprints also matched those that investigators found on a water bottle and granola bar wrapper left near the scene, police said.

CNN legal analyst and former federal prosecutor Jennifer Rodgers described Friedman Agnifilo on Friday as the “sort of person you want” to take on the case.

“So really what you want is a lawyer who can take you through the real case, right?” Rodgers told CNN’s Kaitlan Collins.

“The pre-trial and, of course, the trial. And Karen is the sort of person with all of her many years of experience as a trial lawyer and in this actual courthouse and in this actual office.”

Friedman Agnifilo — in a CNN appearance on Tuesday, days before Mangione reportedly hired her to represent him — predicted that there could be a “not guilty by reason of insanity” defense as the evidence is “going to be so overwhelming that he did what he did.”

“As a former prosecutor in [the Manhattan District Attorney’s] office, I would be concerned that you have someone who is a valedictorian of his class. He was brilliant his whole life. He comes from this great family. I mean, something changed, right, significantly, something changed,” she said.

She continued, “And they’re going to, I think, potentially have a not guilty by reason of insanity potential defense. So the prosecutors are going to try to shore that up as well in their investigation.”

Mangione’s lawyer in Pennsylvania, Thomas Dickey, has said that his client would be pleading not guilty in that state and he’s yet to see evidence that’d implicate his client.

“I don’t even know if this is him or whatever,” Dickey said on Tuesday.

“So we’re going to test those waters and give the government a chance to bring some evidence forward.”