Thursday's scheduled execution is expected to be only the second execution of a blind prisoner in the U.S. since the reinstatement of the death penalty in 1976.
Megan Louise Montgomery, 31, who volunteered for the Greater Birmingham Humane Society, was found face down in a parking lot with two gunshot wounds.
Joann Cunningham faces up to 60 years in prison for the April murder of her son.
The officer unintentionally shot the shoplifting suspect's mother during a confrontation inside a home, authorities said.
The couple's friends purchased what they believed was a baby bouncer at the thrift store. Instead, the sealed box contained a rifle.