RIPLEY COUNTY, MO (KFVS) - Family members of four murder victims in Ripley County, Missouri will have to wait even longer for the last person accused in the case to stand trial.
According to the Missouri Attorney General's office, there has been a mistrial in the Keith Boyles case.
Boyles is charged with four counts of first degree murder, four counts of armed criminal action and also faces burglary and arson charges.
Boyles is accused of killing Gladys Irene Piatt, 80, and her husband Loyd Eugene Piatt, 77, Edgar Atkinson, 81, and Bonnie Chase, 69.
Boyles was arrested and charged along with his girlfriend, Chantale Youngblood, and her parents, David and Melissa Youngblood.
The Piatts were found dead inside their burned rural Doniphan home in June of 2010.
The Piatts were David Youngblood's aunt and uncle.
Authorities initially thought the couple died of smoke inhalation, but became suspicious after the bodies of Atkinson and Chase were found in their Ripley County home in July of 2010.
The Piatt's bodies were exhumed and autopsies showed they died of gunshot wounds.
Authorities say Atkinson and Chase also died of gunshot wounds.
The Youngbloods and Boyles were arrest and charged in connection with the four murders.
Boyles is the last to stand trial.
Prosecutors are seeking the death penalty.
Authorities were not able to get a jury seated this week ahead of Keith Boyles' trial which was scheduled to begin on January 19, 2016 in Butler County.
Heartland News has learned there will be a case review in February when a new trial date is expected to be set.