Comedian Mike DeStefano died on Sunday

Comedian Mike DeStefano died Sunday of a heart attack, Punchline Magazine reports. The funnyman came in fourth place on the most recent 'Last Comic Standing.

A friend of DeStefano's family confirmed the news to Punchline, and TV Guide reports that DeStefano's producer addressed the death on Twitter, writing, "We'll be talking about it later. Sorry if we've ignored the e-mails and text messages. Mike became a brother to us. We love him."

DeStefano began his stand-up career at 31 while working as a drug counselor in Florida, according to the bio on his website. "He offered to entertain the audience at a convention, and following their positive response, he decided to start his career in stand-up."