The 26-year-old Mangione is charged with fatally shooting UnitedHealthcare CEO Brian Thompson, age 50, outside a Manhattan hotel in December ahead of an investor conference.
He has pleaded not guilty to the charge of murder as an act of terrorism that was filed in New York and remains in custody at the Metropolitan Detention Center in Brooklyn, where Sean "Diddy" Combs is also being held. Combs is facing sex trafficking and other offenses.
In a filing on Friday, March 21, Mangione’s attorneys, led by Karen Friedman Agnifilo, said the laptop would be used solely to review legal materials.
The proposed device would be disabled from accessing the internet, running video games, or playing movies— configured strictly to assist in preparing his defense.
Prosecutors say they’ve turned over more than 15,000 pages of documents and thousands of hours of video evidence.
"While discovery provided thus far is voluminous, it is far from complete and, most notably, it is missing essential records that are in the prosecution's possession and are necessary for defense motions," Mangione's lawyers said in the filing.
Mangione’s legal team argues he needs digital access to meaningfully participate in his own defense.
The Manhattan district attorney’s office, however, has voiced concerns, according to Magione's legal team. They are reportedly involving potential witness safety risks tied to threats allegedly linked to the case.
Thompson, a father of two and longtime healthcare executive, was killed outside the hotel just before the start of UnitedHealthcare’s annual investor event at the New York Hilton.
Mangione, an Ivy League-educated computer science major from a prominent Maryland family, is also facing federal charges that could carry the death penalty. He has not yet entered a plea in the federal case or in a separate Pennsylvania gun-possession matter stemming from his arrest there after a days-long manhunt.
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