Shane del Rosario, who competed twice inside the UFC’s Octagon, has passed away, according to his friend and roommate Ian McCall, along with Team Oyama teammate Carla Esparza.

Del Rosario, 30 years old, suffered a heart attack two weeks ago, going into full cardiac arrest. He was brought directly to the hospital and resuscitated in the emergency room where he remained under the watchful eye of doctors.

The UFC released the following statement:

The Ultimate Fighting Championship mourns the tragic loss of heavyweight competitor Shane Del Rosario, who has passed away at the age of 30. Del Rosario suffered a heart attack on Tuesday, Nov. 26 as a result of what doctors believe to a congenital heart disorder, according to his manager Jason House.

The entire organization sends its deepest condolences to Shane’s family and friends.

The California native posted an 8-1 record in kickboxing and went 11-2 in MMA. Del Rosario was involved in a car accident after defeating Lavar Johnson in 2011 that left him with a herniated disc in his back.

Court McGee, a member of the UFC’s family of fighters, told FightLine “I only met him on one occasion (but he was) a very nice guy and very talented athlete. My condolences to his family.”

Del Rosario made his MMA debut in 2006 and won his first 11 fights. He debuted with the UFC in 2012, falling to both Stipe Miocic and Pat Barry.

All of us at Rebellion Media would like to extend our deepest condolences to the entire del Rosario family. Below is also a video produced by Rick Lee detailing del Rosario’s return from the car accident.