Murphy was kidnapped on February 20, 1974, at the age of 40, and was freed two days later after the Atlanta Constitution paid $700,000 ransom.[2][4]
Murphy was well known for his stance against the Vietnam War, but the motive for the kidnapping is still unknown.[5] William A. H. Williams was arrested for the crime only six hours after Murphy was released, and all of the money was recovered.[6]
Williams was convicted and sentenced to 40 years in jail but served only nine; his wife Betty received probation for not reporting her husband to police.[2][7] Williams claimed to represent a right-wing militia group called The American Revolutionary Army, protesting against "too leftist and too liberal" media outlets and a government which was a “fraud and a murderer on a mass scale”, and sought to have all federal elected officials resign.[8]
In 2019, contacted by a journalist, Williams apologised for the kidnapping.[9]