Zhao, who died at 85, was a reformer who was removed from office, and imprisoned, in 1989 after denouncing the use of force against student protesters in Tiananmen Square.
Zhao died in prison. 
He was released from prison. 
( z1 die :ARG1 ( z2 person :name ( z3 name :op "Zhao" ) ) :location ( z4 prison ) )