12/08/2014 10:09 am ET Updated Dec 08, 2014

Matt Taibbi 'Mortified And Sorry' For Rolling Stone UVA Story, Defends Magazine's Fact-Checking

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Matt Taibbi took to Twitter Saturday morning to express how "mortified and sorry" he is for those affected by Rolling Stone's recent -- and unraveling -- account of an alleged gang rape at the University of Virginia.

The tweets come on the heels of reports calling the veracity of the Rolling Stone article into question, and the magazine issuing a controversial apology on Friday.

Taibbi, a long-time contributor to Rolling Stone who recently returned to the publication after leaving First Look Media, began by stating he was sorry not only for the magazine's readership, but its source for the article -- a UVA student referred to as "Jackie," upon whom some believe the initial apology cast undeserved blame.

Taibbi also offered kind words for Rolling Stone's managing editor Will Dana, who issued the statement on Friday, and came to the defense of the magazine's rigorous fact checking process:

Taibbi concluded by saying he believed other Rolling Stone contributors would agree with his assessment.

Taibbi expanded on his tweets in an email to The Huffington Post on Monday.

"Over the years, my family has grown tired of my complaints about the stress of the RS fact-checks," he wrote. "So I was really surprised by this UVA situation and that's all I wanted to say on Twitter this weekend."

"I want to stress that I don't know what happened in this case. I'm not saying there wasn't a big mistake. I'm just explaining what my own experience has been," Taibbi added.