Malvo, who was 17 at the time of the shootings, was convicted and sentenced to life in prison for killing Linda Franklin, a 47-year-old FBI analyst who was shot as she and her husband loaded supplies at a Home Depot in Falls Church, Va.
"I don't see how someone can plan and plot and commit murder, one right after the other, and get off with just life in prison, I don't care what their age is," Moore said.
Moore, a retired bioengineer at the University of Florida, said his daughter used to call him every morning "to tell me to get out of bed and start chasing my wife around the house or something."
He struggles with Parkinson's disease now, and says he can't afford the trip to Virginia to watch the execution. He's not really sure he would make the trip if he could, though.
"When my daughter was first killed, if I would have had a gun I would have been willing to kill him but right now I don't know how I feel," Moore said. "I don't want him turned loose on society, that's for sure."
Caroline Seawell has refused to live the last seven years as a victim.
Sure, her ribs are deformed and there's a piece of mesh covering a hole in her diaphragm. But Seawell has been blessed with no major medical problems since a sniper's bullet raced into her back and through a handful of organs as she loaded a scarecrow and other Halloween decorations into her minivan.
She and her family moved to South Carolina not long after the shooting outside a Fredericksburg, Va., Michael's craft store. Her youngest son, now 11, doesn't even know about the shooting.
"I've been really good about being able to kind of just put it behind me," Seawell said. "I've been able to just continue on with my life."
In that defiant spirit, Seawell said she will not travel to Virginia to watch Muhammad take his last breath. He deserves to die for what he's done, she said, but after watching both parents die from cancer, she has no desire to witness another death.
"There was enough killing already with all of us," she said.
If anything, Seawell says the shooting has made her a much stronger person. If given the chance, she'd like to tell Muhammad and Malvo just that.
"They didn't do what they set out to do because they haven't devastated my life," she said. "I've been able to move on and continue and raise my children, which is exactly what I wanted to do.
"I don't want them to have any satisfaction out of the fact that they shot me."
Associated Press Writer David Dishneau contributed to this report from Hagerstown, Md.