In the months leading up to the attack, Mr. Mangione, 26, maintained accounts on platforms including Facebook, X, Instagram and Goodreads, focusing on self-improvement and critiques of tech.
Mr. Mangione's LinkedIn profile lists two degrees, a master's and a bachelor's in computer science from the University of Pennsylvania, and portrays a well-educated individual.
His X account contained little that would distinguish him from other young tech professionals, featuring reposts from known advocates of self-improvement and critiques of modern consumption.
Colleagues and figures he engaged with have distanced themselves from Mr. Mangione, citing the stark contrast between their messages and his alleged actions.
Collection
[
|
...
]