A longtime pro-Putin blogger published a tirade against the Russian president. Now he’s in a psychiatric hospital.

Ilya Remeslo, a longtime pro-Kremlin blogger known for filing complaints against critics of the Russian authorities, made waves in the country this week when he published a Telegram post titled “Five reasons why I stopped supporting Vladimir Putin.” Days later, he was reported to have been hospitalized at a St. Petersburg psychiatric facility. Here’s what we know about Remeslo’s about-face.