Luigi Mangione’s hobby while studying at the University of Pennsylvania was 3D printing, his former pal told The Post.
“It’s funny, I recall him being into 3D printing in sophomore year,” said Matthew Levy, who lived next door to Mangione’s dorm room in their freshman year.
“I mean, he was making much more innocent things then.”
Cops have said Mangione allegedly used what appeared to be a 3D-printed ghost gun in UnitedHealthcare CEO Brian Thompson’s slaying in New York City last week.
