Memphis vocal group The Mad Lads were another group of South Memphians, led by John Gary Williams, who recorded a number of singles and albums for the Stax subsidiary Volt Records. Their recording career came to a brief hiatus after John Gary Williams was sentenced to prison for his alleged role in the ambush of a Memphis police officer by the Black militant organization The Invaders. They have occasionally recorded again since the 1970’s, but on Sunday April 28, 2013, they appeared in South Memphis on stage behind the Stax Museum at the Stax to the Max event, performing their biggest hit single.
How many years did John Gary Williams, lead voice for the Mad Lads, serve upon conviction? When did he get out?
It would seem that he was in jail from 1969 to 1973.http://blog.lightintheattic.net/john-gary-williams-i-see-hope-documentary/