A seven-member jury comprising four men and three women handed down the verdict in Home Circuit Court in Kingston after three hours and 11 minutes of deliberation.
Ninja Man, whose given name is Desmond Ballentyne, along with his son, Janeil, and Dennis Clayton, were on trial for the 2009 murder of Johnson in the Lower Mall Road community of Kingston.
Ninja Man and his co-accused had been on trial for the five weeks in a hearing that was closed to the public because it is a gun matter.
“A suh it go man” Ninja Man said as he and his co-accused were led away in handcuffs.
As he boarded a police vehicle to be taken to prison, he would make another utterance.
“Don’t worry yuhself, Jamaica, I’ll be back,” Ninja Man said.
He and his co-accused are to be sentenced on December 15.