Iron Butterfly's bassist Lee Dorman has passed away. He was found dead by cops at his home in Orange County, California on Friday, December 21, sitting in his car.

The musician, who reportedly had history of heart problems, is believed to have been died of natural causes as police did not suspect any foul play. He was 70.

Lee joined Iron psychedelic rock band Iron Butterfly in 1967 and took part in recording the band's biggest hit "In-A-Gadda-Da-Vida" that has sold over 30 million copies. The group underwent changes in the lineup over the years with drummer Ron Bushy becoming the longest tenure.

Lee died less than a year after fellow on-off bandmate Larry "Rhino" Reinhardt died. The guitarist passed away on January 2 this year at the age of 63, due to cirrhosis of the liver.