UnitedHealthcare did not immediately respond to a request for comment from WIRED. In a statement provided to other media outlets, a company spokesperson said: “Our hope is that today’s apprehension brings some relief to Brian’s family, friends, colleagues and the many others affected by this unspeakable tragedy. We thank law enforcement and will continue to work with them on this investigation. We ask that everyone respect the family’s privacy as they mourn.”
A search of Mangione’s online footprint paints a picture of a typical twentysomething, including accounts on Pinterest, Skype, Instagram, and Facebook. On X, what appears to be his account featured an image of what looks to be an X-ray following major spinal cord surgery, one of the few explicit references to health care in his online account history.
A GoodReads account featuring a photo of the suspect that also shares a username with an email address and GitHub account linked to Mangione includes several books related to back pain, including Crooked: Outwitting the Back Pain Industry and Getting on the Road to Recovery. Other titles include Hillbilly Elegy, by US vice president-elect JD Vance, and “Industrial Society and Its Future,” the anti-technology diatribe colloquially known as the Unabomber Manifesto. The GoodReads account has since been set to private.
Mangione, who was valedictorian of his private high school in the Baltimore area, appears to have been an avid gamer, with dozens of game titles listed on an Xbox Live account that shares his name. In 2018, Mangione described himself as passionate about making video games, and helped to found a game development club at Penn that was quickly joined by roughly 60 students, according to a since-deleted article on the university’s news hub.
On a GitHub page believed to belong to Mangione, he shared code repositories that focused on machine learning and human-computer interaction. Among these is a project titled “Meccanoid-Imitate,” which apparently uses Arduino—an open source and easy-to-use electronics platform—and a programmable Meccanoid robot. The repository, last updated four years ago, includes animated GIFs showing Mangione in what appears to be a classroom, moving his arms while a Meccanoid robot behind him mimics his gestures.
Updated at 5:30 pm EST, December 9, 2024, to include additional information about Mangione’s employment history.
Updated at 10:30 am EST, December 10, 2024: Mangione faces weapons charges in Pennsylvania and has been charged with murder in New York.
Updated at 8:55 am EST, December 11, 2024: Clarified that Mangione is not associated with AppRoarr Studios, which has a similar name as a company listed on a GitHub account, Instagram account, and Facebook page linked to the alleged shooter.
