Justin Green is accused of the murder of his roommate and fellow Iraq war veteran Jose Ramirez.
The case first went to trial in August.
A mistrial was declared when jurors couldn't make a unanimous decision on the verdict.
Prosecutors say it was moved to Fort Worth in hopes of finding a jury that hasn't heard about the case.
Authorities say Green shot Ramirez in a home outside Petrolia in 2007 then buried him in a shallow grave.
Ramirez's body was found on the property five years later after authorities received a tip.
Green claims he shot Ramirez in self defense when Ramirez was reaching for a gun during an argument.
Green's sister, mother, and another woman were also arrested in connection with tampering with evidence and assisting in covering up the death.
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