from cnn.com/crime,
WARNING: DO NOT READ IF YOU ARE SENSITIVE TO DESCRIPTIONS OF VIOLENCE
Killer taped boy's torture, prosecutor says
NEW: Joseph Edward Duncan III carefully planned family's killing, prosecutor says
Duncan killed four family members, kidnapped two children
Standby counsel says Duncan may offer no argument for why he should live
Duncan pleaded guilty in December, asked to fire his lawyers in May
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BOISE, Idaho (AP) -- The crime was meticulously planned, the killer choreographing every step from his surveillance of the doomed family to the videotaped torture of one of his youngest victims.
Yet something as simple as a locked back door, or fiercer family dogs, might have turned Joseph Edward Duncan III away.
Duncan's federal sentencing hearing opened Wednesday with U.S. Attorney Thomas Moss outlining how the convicted pedophile terrorized the Groene family, all because he wanted to "live out his fantasy" and exact revenge on society for perceived wrongs.
Duncan pleaded guilty last year to 10 federal charges in the kidnapping of two siblings, ages 8 and 9, and the murder of the older child. The jury will determine whether he should serve life in prison or be executed.
Moss told jurors they'd have to watch video footage of the sexual torture of 9-year-old Dylan Groene, filmed shortly before Duncan killed him.
Duncan forced 8-year-old Shasta Groene, the sole survivor, to watch the video. He also made her watch as he killed her brother, jurors were told.
Duncan, who is representing himself, told the jury Wednesday that most of what Moss said was fair and accurate "up to the point of what occurred at the campground."
He said he would testify so he could try to "clarify things."
His standby legal counsel, Judy Clarke, has said Duncan doesn't plan to offer any mitigation, such as evidence of his own traumatic childhood.
Shasta's videotaped statements to police will tell her story in court. It's not known if she will offer a victim impact statement.
Duncan's past is littered with arrests and prison time for crimes ranging from car theft to rape and molestation. He is suspected in the 1996 slayings of two half-sisters from Seattle and is charged with the 1997 killing of a young boy in Riverside County, California.
In 2005, he went to Idaho. Duncan broke into the Groenes' Coeur d'Alene home, bludgeoning 13-year-old Slade Groene, his mother, Brenda Groene, and her fiance, Mark McKenzie, before abducting Shasta and Dylan. Duncan has already pleaded guilty in state court for the three murders; the federal case concerns the crimes against Shasta and Dylan.
Duncan had researched police investigation procedures and took steps to avoid getting caught, Moss told jurors. He bought too-large tennis shoes at a thrift store so no bloody footprints would lead police to him. He wiped down shotgun shells before loading them so there'd be no fingerprints. He loaded the first shot with BB pellets because he thought he'd have to shoot the family dogs and didn't necessarily want to kill them.
He had a video camera, a computer and a GPS device filled with locations he thought would be handy, such as potential campsites, Moss said. He brought with him the framing hammer he used to bludgeon the older victims.
On the night of the murders, Duncan crept across a field to the home, using a low-visibility red-bulb flashlight to guide his way. He peered into a window and saw the children sleeping. One of the family dogs saw him and growled, frightening him enough that he retreated to the fence, Moss said.
"He made a decision: `If that back door is locked, I'm going to abort,"' Moss said Duncan later told police.
When he turned the handle, it opened. Then the terror began.
The dogs scurried away when they saw Duncan's gun, Moss said. Duncan bound the family, took the youngest children outside and beat the others to death.
Then he drove away with Dylan and Shasta, making sure they knew he had killed their relatives as he headed into the Montana wilderness.
The trio camped for several weeks at the end of a remote road. When Duncan left the camp, he tied the children to a tree with a dog chain.
On June 22, 2005, Duncan left Shasta at the camp, taking Dylan to a cabin, where he videotaped himself sexually abusing and torturing the boy.
"Heinous, cruel and depraved are tough words in the English language, but none of these words ... fully express the outrage of what you will see," Moss told jurors.
After they returned to the campsite, the first thing Duncan did was show Shasta the video, Moss said.
Then, at some point during the next four days, Shasta heard a gunshot and turned to see Dylan clutching his stomach where he'd been hit. She watched as Duncan walked over to Dylan, held the gun to his head and pulled the trigger. The gun didn't fire, Moss said, so Duncan reloaded and fired again.
Duncan wrapped the body in a tarp, threw it on the campfire and let it burn until it was reduced to ashes. He then took Shasta back to Coeur d'Alene, stopping for a meal at a Denny's restaurant, where a waitress recognized the girl and called police.
Dylan "deserves the justice that only you can provide," Moss told the jury.