John Hartman, who is a drummer, passed away at the age of 72.
John Hartman is the co-founder of the Dobie Brothers and Wild Spirit announces his death.
John Hartman was the great drummer in his time and showman during his time at Dobbies.
John Hartman Only then it is not confirmed that what was the reason for his death.
A close friend of John Hartman said that he was a very good personality and had a complex personality.
John Hartman's friends express their condolences to his family in this difficult time.
John Hartman became the leader of the band in 1969 and moved to Northern California.
John Hartman started playing drums at Bay Area bars.