U.S. comedian Mike Destefano has died after suffering a massive heart attack on Sunday night (06Mar11).
The funnyman shot to fame in America last year (10) when he was among the finalists of reality TV contest Last Comic Standing.
Tmz.com reports DeStefano was a former heroin addict, who had been clean for 11 years.
Following his TV success last year, he often performed at prisons and rehab centres for free.