Dead: Peter Steele of Type O Negative.

From NY Daily News:

Peter Steele, the frontman for the heavy metal band Type O Negative, has died.

After a morning of speculation, the band's spokesperson confirmed Thursday afternoon that Steele had died Wednesday at age 48.

"Peter passed away last night. As of now it appears to have been heart failure," Mike Renault wrote in an email to CBSNews.com. "That's all the details we have right now."

The official type O Negative Web site posted the following message to its fans this morning, "The forums have been re-opened. Please play nice and expect statements from the band and family later today. Thank you for your understanding and support."

Steele had a history of medical problems since 2004. That year the band announced they were cancelling their U.S. tour so that the singer could be tested for "undisclosed anomalies" found during a medical exam.