WPTV | Andrew Breitbart died of heart failure, narrowing of artery, coroner finds Los Angeles Times Conservative commentator and website editor Andrew Breitbart died of heart failure and had up to a 60% narrowing of a major artery, a Los Angeles County coroner's office report released Wednesday said. The office ruled that the cause of Breitbart's ... Autopsy: Breitbart died of heart failure, had enlarged heart California: Report Gives Details of Blogger's Death |