According to a report from Los Angeles County Medical Examiner, Feldstein's main causes of death were pulmonary thromboembolism and deep leg vein thrombosis. A pulmonary embolism is a blockage in one of the pulmonary arteries in the lung usually caused by clots that travel from the leg.
The report also lists other significant causes as acute bronchopneumonia and obesity. He did have a history of heart issues, but was not being treated for anything specific at his time of death.
A full toxicology report is not yet available.
Feldstein — who was the longtime manager of Maroon 5, as well as other musicians Miguel, Elle King and Robin Thicke — passed away on December 22.
As The Blast first reported, Feldstein left over $5 million dollars from various bank accounts to his two children, Joshua and Charlie.