Suspect in killing of officer found dead in cell

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Weber County Sheriff Terry Thompson, from left, Weber County Attorney Dee Smith, Greg Whinham, Roy City, Chief of Police and Mike Ashment, Ogden Chief of Police, appear after a news conference Friday, May 24, 2013, in Ogden, Utah. Matthew David Stewart, a Utah Army veteran charged with killing a police officer and wounding five others in a shootout during a marijuana raid was found Friday hanging dead in his cell, authorities said. Stewart, 39, was found hanging from a bed sheet during a routine cell check just before 1 a.m., Weber County Attorney Dee Smith said. The county has referred the investigation into the death to an outside agency, and another county attorney will review it. (AP Photo/Rick Bowmer)

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Suspect in killi... Weber County Sheriff Terry Thompson, from left, Weber County Attorney Dee Smith, Greg Whinham, Roy City, Chief of Police and Mike Ashment, Ogden Chief of Police, appear after a news conference Friday, May 24, 2013, in Ogden, Utah. Matthew David Stewart, a Utah Army veteran charged with killing a police officer and wounding five others in a shootout during a marijuana raid was found Friday hanging dead in his cell, authorities said. Stewart, 39, was found hanging from a bed sheet during a routine cell check just before 1 a.m., Weber County Attorney Dee Smith said. The county has referred the investigation into the death to an outside agency, and another county attorney will review it. (AP Photo/Rick Bowmer)
Principal recoun... A battered sign stands outside the wreckage of Plaza Towers Elementary School, where seven children were killed earlier in the week when a tornado hit Moore, Okla., Thursday, May 23, 2013. Cleanup continues three days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)
Arias foreman: S... Jodi Arias listens as the verdict for sentencing is read for her first degree murder conviction at Maricopa County Superior Court in Phoenix, Ariz., on Thursday, May 23, 2013. The jury in Jodi Arias' trial was dismissed Thursday after failing to reach a unanimous decision on whether the woman they convicted of murdering her one-time boyfriend should be sentenced to life or death in a case that has captured headlines worldwide with its sex, lies, violence. (AP Photo/The Arizona Republic, David Wallace, Pool)
Furlough Friday:... FILE - This March 22, 2013 file photo shows the exterior of the Internal Revenue Service building in Washington. No one answered the phone at the IRS hotline for tax help. Forget about advice on avoiding foreclosures at one of the Housing and Urban Development offices nationwide. Roughly five percent of the federal workforce _ 115,000 people at six government agencies _ got an unpaid day off on Friday due to the automatic cuts to the government budget. The furloughs forced some agencies such as the IRS and HUD to drastically scale back operations. (AP Photo/Susan Walsh, File)
After vote on ga... FILE - In this Monday, Feb. 4, 2013 photo provided by the family, Wes Comer holds the Boy Scout uniform of his son, Isaiah, outside their home in Knoxville, Tenn. Comer, whose family attends an Apostolic Pentecostal church which considers homosexuality sinful, had been wrestling with whether to pull his eldest son out of the Scouts if the no-gays policy was abandoned. "To be honest, I'm torn at this point," Comer said in an e-mail Friday, May 24, 2013. "I'm not sure exactly what our decision will be." "If I place this situation in the context of my religious beliefs, I'm forced to ask myself, 'Would I turn a homosexual child away from Sunday School? From a church function? Would I forbid my children to be friends with a gay child?' I can't imagine a situation where I would answer 'yes' to any of those questions. So how can I in this one?" he wrote. (AP Photo/Brooke Comer)
Feds look for te... A person is removed from the wreckage of the collapsed Interstate-5 bridge in Mount Vernon, Wash. Thursday May 23, 2012. The Interstate 5 bridge over the Skagit river collapsed north of Seattle Thursday evening, dumping two vehicles into the water and sparking a rescue effort by boats and divers as three injured people were pulled from the chilly waterway. (AP Photo/Skagit Valley Herald, Frank Varga)
Obama's drone ru... FILE - In this May 23, 2013 file photo, President Barack Obama talks about national security, at the National Defense University at Fort McNair in Washington. The president left plenty of ambiguity in new policy guidelines that he says will restrict how and when the U.S. can launch targeted drone strikes, leaving himself vast power over how and when the weapons can be deployed. (AP Photo/Carolyn Kaster, File)
Obama: Sexual as... Members of the 2013 graduating class of the United States Naval Academy throw their caps into the air marking the end of their commencement ceremony in Annapolis, Md,. Friday, May 24, 2013, where President Barack Obama spoke. (AP Photo/Pablo Martinez Monsivais)
Oklahoma gets fa... Carol Kawaykla salvages items at her tornado-ravaged home Thursday, May 23, 2013, in Moore, Okla. Cleanup continues three days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)
Jersey shore eye... New Jersey Gov. Chris Christie, right, talks to Carla Pilla, of Seaside Heights, N.J., while Robert Hilton, left, executive director of the Jersey Shore Convention and Visitor's Bureau, holds a sign, Friday, May 24, 2013, in Seaside Heights, N.J. Christie cut a ribbon to symbolically reopen the state's shore for the summer season, seven months after being devastated by Superstorm Sandy. Several beach communities have annual beach ribbon cuttings, announcing they are back in business. But this year's ceremonies are more poignant seven months after a storm that did an estimated $37 billion of damage in the state. (AP Photo/Julio Cortez)
Hurricane center... This color-coded graphic made available by the National Hurricane Center on Tuesday, May 21, 2013, shows an example of a map highlighting the greatest risk of storm surge during a storm. The National Hurricane Center will post maps like this on its website starting this hurricane season to alert residents and businesses of areas where storm surge is possible. The hurricane season goes from June 1 to Nov. 30. (AP Photo/National Hurricane Center)
Kid Rock, Rollin... FILE - This Nov. 14, 2012 file photo shows Grammy-award winning artist Kid Rock posing for a portrait in New York. Kid Rock's “$20 Best Night Never Tour” kicks off June 28 in Bristow, Va., and opening acts include ZZ Top, Uncle Kracker and Kool and the Gang. (Photo by Carlo Allegri/Invision/AP, file)
Safe room mandat... On Thursday, May 23, 2013 Sherry Wells stands near the storm shelter where she took cover when a tornado destroyed her home on Monday May 20, 2013 in Moore, Okla. Wells said she and her husband won a lottery draw to receive a government-subsidized rebate to install the storm shelter. A contractor finished work on the concrete bunker beneath the slab of their garage about three weeks before the tornado hit. (AP Photo/David A. Lieb)
Plastic ocean de... File - In this Aug. 11, 2009 file photo provided by the Scripps Institution of Oceanography shows Matt Durham, center, pulling in a large patch of sea garbage with the help of Miriam Goldstein, right, in the Pacific Ocean. Plastics discarded by people often end up in the ocean, creating coastal pollution that harms marine life and gathers out at sea in what's become known as the great Pacific garbage patch. Now, California state lawmakers have introduced a law that if passed would require makers of plastic bottles, bags and packaging to replace plastics with more environmentally friendly alternatives. (AP Photo/ Scripps Institution of Oceanography, Mario Aguilera, File)
Older brother he... A law enforcement official from Davis County walks from the garage Thursday, May 23, 2013, at a home where two young boys were found dead Wednesday night in West Point, Utah. A teenager was arrested Thursday in the deaths of his two younger brothers, ages 4 and 10, at the family home in a Utah subdivision of new homes and tidy lawns, police said. Davis County Sheriff Todd Richardson said authorities believe the boys died from knife wounds. It appears the 15-year-old boy acted alone, he said. (AP Photo/Rick Bowmer)
I-5 bridge colla... In this photo provided by Francisco Rodriguez, a man is seen sitting atop a car that fell into the Skagit River after the collapse of the Interstate 5 bridge there minutes earlier Thursday, May 23, 2013, in Mount Vernon, Wash. (AP Photo/Francisco Rodriguez)
Jurors deadlock ... Jodi Arias stands as the jury is excused after the verdict for sentencing was declared a hung jury for her first degree murder conviction at Maricopa County Superior Court in Phoenix, Ariz., on Thursday, May 23, 2013. (AP Photo/The Arizona Republic, David Wallace, Pool)
NJ: Caramel-colo... Funnels confiscated during an investigation dubbed "Operation Swill," in which 29 bars and restaurants in New Jersey are accused of putting cheap booze in premium brand liquor bottles and selling it, are displayed during a news conference, Thursday, May 23, 2013, in Trenton, N.J. Thirteen of the restaurants cited are TGI Fridays located in central and northern New Jersey. (AP Photo/Julio Cortez)
Weiner gets star... New York City mayoral hopeful Anthony Weiner discusses his policies with a passerby while greeting commuters during a campaign event outside a Harlem subway station, Thursday, May 23, 2013 in New York. Weiner, who ran for mayor in 2005 and nearly did in 2009, is getting into the race to succeed three-term Mayor Michael Bloomberg about two years after a series of tawdry tweets, and obfuscating explanations that capsized his promising congressional career. (AP Photo/Jason DeCrow)
Boy Scouts appro... Boy Scouts salute early Saturday morning, May 21, 2011 during New Jersey's Boy Scouts Camporee in Sea Girt, N.J. The Boy Scouts of America's National Council has voted to ease a long-standing ban and allow openly gay boys to be accepted as Scouts, Thursday, May 23, 2013. Of the local Scout leaders voting at their annual meeting in Texas, more than 60 percent supported the proposal. (AP Photo/Mel Evans, file)
The next steps i... Convicted killer Jodi Arias thinks about a question asked during an interview at the Maricopa County Estrella Jail on Tuesday, May 21, 2013, in Phoenix. Arias was convicted recently of killing her former boyfriend Travis Alexander in his suburban Phoenix home back in 2008, and could face the possibility of the death penalty as the sentencing phase of her trial continues. (AP Photo/Ross D. Franklin)
Distraught mom b... FILE - In this May 20, 2013 file photo, LaTisha Garcia carries her 8-year-old daughter, Jazmin Rodriguez near Plaza Towers Elementary School after a massive tornado carved its way through Moore, Okla., leaving little of the school and neighborhood. This picture, published on hundreds of front pages around the world, has become one of the enduring images from the storm. (AP Photo/Sue Ogrocki,File)
Nixon library ho... FILE - This March 17, 1973 file photo shows released prisoner of war Lt. Col. Robert L. Stirm being greeted by his family at Travis Air Force Base in Fairfield, Calif., as he returns home from the Vietnam War. In the lead is Stirm's daughter Lori, 15; followed by son Robert, 14; daughter Cynthia, 11; wife Loretta and son Roger, 12. On Thursday, May 24, 2013, some 200 former POWs, almost all of them former pilots, will reunite for a three-day celebration at the Richard Nixon Presidential Library & Museum in Yorba LInda, Calif., that coincides with the 40th anniversary of a star-studded White House dinner hosted by President Nixon to honor their sacrifice. At the time, Nixon was embroiled in Watergate, but the former prisoners, now in their 60s and 70s, credit him with their freedom and have no qualms about expressing their loyalty for the 37th president. This photo won the Pulitzer Prize for News Photography in 1973. (AP Photo/Sal Veder, File)