Andrew Breitbart, the conservative blogger and journalist, died suddenly on Thursday morning, according to his website Big Journalism. He was 43.

The site said that Breitbart died of "natural causes" shortly after midnight on Thursday. ABC News confirmed that Breitbart had passed away. Breitbart's attorney also confirmed the news to CNN.

Breitbart's father-in-law told the Associated Press that Breitbart was walking near his house when he collapsed. Someone saw him fall and called 911. Breitbart was taken to UCLA Medical Center, but could not be revived.

"We have lost a husband, a father, a son, a brother, a dear friend, a patriot and a happy warrior," the post said. "Andrew lived boldly, so that we more timid souls would dare to live freely and fully, and fight for the fragile liberty he showed us how to love."
Andrew Breitbart Dead: Conservative Blogger Dies Suddenly At 43