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Rhonda Whited-Rupp, left, sister of murder victim Sherry Arnold, gets a hug from friend and co-worker Carmen Latka in the kitchen of Whited-Rupp’s home in Sidney, Mont. in this photos made on Nov. 5, 2013. Almost two years after Arnold’s murder, the defendant’s attorneys are seeking to have him declared unfit for trial due to mental disability. (AP Photo/Matthew Brown)
After Montana teacher’s death, suspect’s trial in doubt
First Published Dec 06 2013 10:00 am • Last Updated Dec 06 2013 10:09 am

Sidney, Mont. • The killing of a much-loved high school teacher nearly two years ago has weighed heavily in rural Montana. Hundreds of people helped search for Sherry Arnold and calls for frontier-style justice greeted the arrest of the man accused of killing her.

Today, the fate of 24-year-old Michael Keith Spell rests not with a jury but with experts evaluating whether he should be declared unfit for trial due to mental disability.

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Initially, Arnold’s disappearance during a pre-dawn jog confirmed residents’ fears about crime rising with the oil shale boom sweeping the Northern Plains. The case since has evolved into a referendum on justice for a man said to have the mental capacities of a first grader.

Spell’s alleged accomplice, Lester Van Waters Jr., 49, has a much more extensive criminal record. He pleaded guilty in a deal that lets him avoid a potential death sentence if he testifies against Spell.

Spell’s attorneys say his intellectual disabilities date back to his elementary school days in Parachute, Colo. If he goes to trial, they say the death sentence sought by prosecutors should be barred by a U.S. Supreme Court ruling that forbids executions of the mentally disabled.

It’s the first such argument in Montana since the high court’s 2002 ruling in Atkins vs. Virginia, and prosecutors are fighting it. They are sending their own team to the state mental hospital to evaluate Spell, accused of randomly abducting and killing Arnold on Jan. 7, 2012.

Waters testified at his change of plea hearing that he and Spell had consumed massive amounts of cocaine as they drove from Colorado looking for work in the oil fields. He said they were looking for a woman to have sex with when they spotted Arnold along the side of a road in the small community of Sidney, a city of 5,000 near the confluence of the Yellowstone and Missouri Rivers.

Spell grabbed Arnold along an irrigation ditch just blocks from her house, overpowered and killed her, according to court documents filed by prosecutors. The remains of the 43-year-old mother of two were recovered from a shallow grave on March 21, 2012, near Williston, N.D., about 50 miles away.

In Sidney, pain over the death of a woman most refer to as simply "Sherry" is shared community-wide. Her tenure in the local school system stretched across two generations, and former students and their parents said they admired Arnold for her competence and compassion in the classroom.

"Our town is too wounded to be objective," said Tina Turner, a shop owner who searched for Arnold and pasted a missing person poster in the window of her Planet Hair & Spa.

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"I’ve always believed every life is worth something, but when someone takes a life, it changes how you feel about things," she said.

Judge Richard Simonton moved the case from Sidney to Glendive, Mont., about 50 miles away, after the defense pointed to comments in the Sidney Herald that extolled "Old West Justice" and called for the accused to "hang from the nearest tree."

The trial, scheduled to begin Jan. 6, was canceled by Simonton on Wednesday after state officials said they needed until mid-January to evaluate Spell.

Arnold’s sister, Rhonda Whited-Rupp, said her family believes justice was served when Spell and Van Waters were arrested.

"I want to drive over them, but we don’t do that," said Whited-Rupp. "Death is not the ultimate goal. Just don’t let them out, that’s all I’m worried about, whether it’s in prison or an institution or whatever."

Defense attorney Al Avignone said Spell reads at a first-grade level and has consistently scored below 75 on IQ tests, a cutoff intelligence level considered a central indicator of mental disability.

In 2012, authorities said Spell tried to lead FBI agents to Arnold’s body but failed. Spell is illiterate, and his father has said he has less education than a kindergartner.

Filings by Richland County prosecutors showed that the state wanted its own specialists to evaluate Spell, setting up the potential for dueling experts when the matter comes back to Simonton.

It’s a common situation in cases that could fall under the 2002 Atkins ruling, said Kevin McGrew, a visiting professor in educational psychology at the University of Minnesota who has testified in similar cases.

While the Supreme Court banned executions of the mentally disabled, states were allowed to come up with their own criteria for who qualifies.

Whited-Rupp, who cares for Arnold’s daughter, said her family seeks solace in Christian teachings, and she exchanges Bible verses daily with a friend who also lost a family member to murder.

"God asked us to pray for all those people. It’s tough. But we’re going to do it," she said. "The best thing those guys (Spell and Waters) could get is a Bible. Then lock them up."

Copyright 2014 The Salt Lake Tribune. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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