what was the verdict he received?
Convicted of two counts of murder, Gardner was sentenced to life imprisonment for the first count and received the death penalty for the second.
Ronnie Lee Gardner
Convicted of two counts of murder, Gardner was sentenced to life imprisonment for the first count and received the death penalty for the second. 
who was the last person executed by firing squad Ronnie Lee Gardner what was the reason for him being executed? He received the death penalty for killing a man during an attempted escape from a courthouse
wiki:827024
Ronnie Lee Gardner [SEP] Introduction
Convicted of two counts of murder, Gardner was sentenced to life imprisonment for the first count and received the death penalty for the second. The state adopted more stringent security measures as a result of the incident at the courthouse. While held at Utah State Prison, Gardner was charged with another capital crime for stabbing an inmate in 1994. However, that charge was thrown out by the Utah Supreme Court because the victim survived. In a series of appeals, defense attorneys presented mitigating evidence of the troubled upbringing of Gardner, who had spent nearly his entire adult life in incarceration.