Patients like Teen Mom OG's Catelynn Lowell entered Sierra Tucson to seek help, but not all left the rehab center alive. Breaking Celebrity News has learned that at least four patients have committed suicide during their stay at the Arizona treatment center.

Lowell, 24, checked out of Sierra Tucson over the weekend, as she tweeted her stay has made her feel "better than ever."

But the same can't be said for 55-year-old Richard Lecce, who hung himself in his room with a belt in January 2015, according to a lawsuit filed by his family last November in Pima County Superior Court.

Lecce, who was on suicide watch, missed his five appointments on the day of his untimely death,