Could somebody have killed the Godfather of Soul?

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Tuesday, Feb. 5, 2019

(CNN) -- At least 13 people think somebody murdered the Godfather of Soul, and one of them includes the doctor who signed James Brown's death certificate.

The iconic singer died at 73-year-old in an Atlanta hospital in 2006. His official cause of death was a heart attack and fluid in the lungs.

In a new investigative series, Dr. Marvin Crawford tells CNN he doesn't believe Brown could have gone from as healthy as he was to die so quickly.

There are new calls for a forensic investigation. Crawford says he initially asked for an autopsy, but Brown's daughter said no.

The three-part investigative series also examines the 1996 death of Brown's third wife, Adrienne Brown.

An informant alleges she was murdered by a doctor who administered a fatal drug overdose.