Jordan Feldstein's cause of death has just been identified, with the Coroner's Office pointing to blood clots, pneumonia, and obesity for his passing.

Feldstein, who is the brother of Jonah Hill and founder and CEO of Career Artist Management (CAM), passed away on Dec. 22, 2017. He was 40 years old.

Cause Of Death

The Los Angeles County Department of Medical Examiner-Coroner released the report on their online portal, showing the main points. The primary cause of death was identified as a pulmonary thromboembolism, which is a pulmonary embolism (blood vessel blockage in the lung) from a blood clot that was dislodged from another part of the body, usually from the legs, according to Heart Health 24.

The secondary cause of Feldstein's death is deep leg vein thrombosis, a blood clot in a deep vein, usually located in the leg.

Other significant causes listed in the report include obesity and acute bronchopneumonia, a type of pneumonia causing inflammation in the bronchi.

According to The Blast, Feldstein had a history of heart problems, but he was not under any treatment at the time of his death.

"Unfortunately, last night Jordan called 911 for shortness of breath, when paramedics arrived it was determined he went into full cardiac arrest and passed away shortly thereafter," a rep for his family told People upon his passing.

Feldstein is survived by his two children.

Feldstein In The Music Industry

A report from Hollywood Reporter revealed that the well-known music manager was childhood friends with Adam Levine and managed Maroon 5 from their beginning 15 years ago. He was also reportedly significant in landing the frontman the gig as a coach in NBC's hit reality competition The Voice.

As the head of CAM, Feldstein also managed musicians including Rick Springfield, Miguel, Robin Thicke, Big Boi, The B-52's, Elle King, and Chromeo.

"He was the smartest guy in the room - at all times," Adam Harrison, general manager at CAM, recounts during his eulogy at Feldstein's funeral. "He was two steps ahead of all of us. Jordan could always see the big picture, even when others couldn't."

The full speech was originally shared by Billboard.