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Press Release

Three Men Sentenced to Federal Prison for Cold Case Murder

For Immediate Release
U.S. Attorney's Office, Northern District of Iowa

The three men responsible for Tony “T-Bone” Canfield’s death were sentenced to Federal Prison.

Devery Hibbler, age 26, from Dumas, Arkansas, Robert Beaver, age 35, from Sioux City, Iowa, and Courtland Clark, age 30, from Flowery Branch, Georgia, received their prison terms after June 10, 2016, guilty pleas.  Hibbler, Beaver, and Clark each pled guilty to interference with commerce by robbery.  In addition Clark and Hibbler also pled guilty to use of a firearm during and in relation to a crime of violence causing death.

Evidence at the change of plea hearings revealed: at about 11:00 pm on May 1, 2011, in Sioux City, Iowa, Beaver, Clark, and Hibbler, armed with a single loaded handgun, entered Tony Canfield's home to rob him of his marijuana and his marijuana proceeds.  Beaver beat and held Canfield's wife while Clark and Hibbler struggled with, and physically robbed Canfield.  Canfield resisted his attackers and attempted to escape the robbery by fleeing from his home.  Canfield did not make it to safety; he was shot to death on his front porch by Hibbler.

The three defendants escaped the crime scene and successfully avoided detection for nearly five years.  They were charged in a Superseding Indictment on April, 19, 2016.

Hibbler and Beaver were sentenced in Sioux City by United States District Court Judge Leonard T. Strand.  Devery Hibbler was sentenced to 420 months’

imprisonment,  Robert Beaver was sentenced to 240 months’ imprisonment, and Courtland Clark was sentenced to 252 months’ imprisonment.  Hibbler must serve a five-year term of supervised release after prison.  Beaver must serve a three-year term of supervised release after prison, and Clark must serve a five-year term of supervised release after prison.  There is no parole in the federal system.  Hibbler and Clark were each ordered to pay a $200 special assessment, and Beaver was ordered to pay a $100 special assessment.

United States Attorney Kevin Techau stated:

“I would like to commend the hard work and perseverance of the law enforcement officers and agents that investigated this case. The FBI and Sioux City Police department spent hundreds of hours collecting evidence and tracking down witnesses from numerous states. Because of their hard work and cooperation, a difficult murder case has been solved, and the perpetrators brought to justice.”

All three are being held in the United States Marshal’s custody until they can be transported to a federal prison.

The case was investigated by the United States Department of Justice – Federal Bureau of Investigation, Sioux City Iowa Police Department, and the Woodbury County Attorney’s Office.  The case was prosecuted by Assistant United States Attorney Forde Fairchild. 

Court file information at

The case file number is 16-4009.

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Updated September 14, 2016

Firearms Offenses