Police hadn’t released the document to the public as of Dec. 10. But some X users were sharing what they said was a manifesto Mangione published on Substack, a subscription-based platform for online ...

Substack has reached more than 5 million paid subscriptions for the first time, the company said this week. The updated audience total comes just four months after the digital journalism and content ...

“Across the board, writers such as Marisa Kabas, Luke O’Neil, Jonathan M. Katz and Ryan Broderick — all of whom exited Substack in early 2024 following the publication of an open letter in December ...