Comedian John Pinette died Saturday afternoon at the Sheraton Hotel in Pittsburgh, Penn.

According to a supervisor from the Allegheny County medical examiner’s office, Pinette suffered from liver and heart disease.

Pinette’s personal doctor signed off on the cause of death so no autopsy was performed. Authorities do not suspect foul play.

However, in August he delayed performances to seek treatment in a rehabilitation facility for a prescription drug addiction.

“Thanks to everyone for your concern and well wishes,” he tweeted following treatment. “Want to apologize for having missed shows last weekend, but I hope you understand!”

The 50-year-old comedian was a native of Boston and a noted impressionist. He was also known for his self-deprecating humor about this weight.

One of his most famous bits is the one about a Chinese Buffet:

The comedian appeared in films like Duets, Dear God, The Punisher and Junior.

He was also a guest-star on the series finale of Seinfeld, playing the victim of a carjacking.

According to his Facebook page, he was scheduled to perform at Ontario Improv this Thursday.

His final post on Facebook read, “Happy Friday everyone! Hope you all have a GREAT weekend! Don’t forget to catch me at the Ontario Improv Comedy Club next week, April 10-13!”

Condolences have started to pour in on Twitter:

RIP @JohnPinette. Very sad news.

— Drew Carey (@DrewFromTV) April 6, 2014

John Pinette. Funny man. Kind man. Rest in peace.

— bob saget (@bobsaget) April 6, 2014

Peaceful journey John Pinette and Thank you ! pic.twitter.com/0OG32EXCfd

— Vicente Christian (@ViChristi) April 6, 2014

John Pinette and I worked on a film together. He was one of the most generous people I've ever worked with. A hilarious comedian. Sad loss.

— Dane Cook (@DaneCook) April 7, 2014

RIP John Pinette. Funny guy. Only met him once, and he was a really nice person.

— Judah Friedlander (@JudahWorldChamp) April 6, 2014

I was so lucky to work so many gigs with John Pinette who was as kind as he was funny. So very sad for his family. Way too young.

— Caroline Rhea (@CarolineRhea) April 6, 2014

Just was informed a great comedian and buddy John Pinette passed away Saturday. Horrible news. Never failed to make us cry laughing. On or

— Larry The Cable Guy (@GitRDoneLarry) April 6, 2014

off stage. RIP Johnny.

— Larry The Cable Guy (@GitRDoneLarry) April 6, 2014

So sad to hear about John Pinette. Was a hilarious Boston comic. #RIP

— andrew stanton (@andrewstanton) April 6, 2014

RIP John Pinette. I was listening to him the other day.

— rob delaney (@robdelaney) April 6, 2014

“@DrewFromTV: RIP @JohnPinette. Very sad news.” So true!

— Gilbert Rozon (@GilRozon) April 6, 2014

Just learning of the sad and tragic death of John Pinette, a true giant of comedy, and a deeply felt loss to all of us he made laugh

— The Daily Show Couch (@TDSCouch) April 7, 2014

Really breaks my heart to hear @JohnPinette has passed away. Obviously hilarious but just such a sweet guy.

— Steve Byrne (@stevebyrnelive) April 6, 2014

Sad day… For those who are skeptical of tweets…John Pinette has gone to the big buffet in the sky: http://t.co/8eaEezuq0M

— Frank Caliendo (@FrankCaliendo) April 6, 2014

RIP john pinette, you were a great comedian & even better person and everyone's friend, you will be missed

— Louie Anderson (@LouieAnderson) April 7, 2014

John Pinette is dead. He was a funny guy. Nice guy too. Later, man. RIP

— marc maron (@marcmaron) April 7, 2014

Image via Wikimedia Commons