Bill Paxton's Death Certificate Reveals He Suffered Fatal Stroke

Bill Paxton's death certificate is shedding new light on the details on the beloved Hollywood star's death at age 61.

According to reports, the Titanic actor had undergone surgery in Los Angeles on Valentine's Day to fix what doctor's had determined to be an aortic aneurysm.

Tragically, the official certificate shows Paxton suffered an unexpected stroke following a valve replacement procedure, and he passed away at Cedars-Sinai Medical Center 11 days later.

As RadarOnline.com reported, Paxton hid what was supposed to be a lifesaving procedure from some loved ones so his Feb. 25 death came as a shock.

"We didn't even know he was going to go into surgery," Jon Otten, who is married Paxton's sister, Ann, told RadarOnline.com. "It's very tragic and sudden."

Paxton claimed shortly before his death that his heart issues were the result of suffering rheumatic fever as a child.