PURCELL — A jury in McClain County took less than four hours to convict Shaun Michael Bosse in the July 2010 slayings of a woman and her two children in the small town of Dibble.
The bodies of Katrina Griffin, 25, Christian Griffin, 8, and Chasity Hammer, 6, were found July 23, 2010, in their badly burned mobile home after a neighbor noticed smoke billowing out of it that morning.
The jury — made up of nine women and three men — will recommend a sentence on the three murder counts Tuesday morning in McClain County District Court. Prosecutors are seeking the death penalty in the case.
Bosse, 30, also was convicted Monday of first-degree arson, with a recommendation of 35 years on the lesser charge.
McClain County District Attorney Greg Mashburn said he felt a combination of physical evidence and a strong circumstantial case led the jury to a guilty verdict for Bosse.
Mashburn also gave credit to the Bureau of Alcohol, Tobacco, Firearms and Explosives for conducting extensive recreations of the fire he claims Bosse set to cover up his crimes.
“There were a lot of pieces to this puzzle, and the physical evidence played into that and were major pieces to the puzzle,” Mashburn said.
Prosecutors theorized that Bosse killed the family after Katrina Griffin discovered that he was stealing their personal property.
Katrina Griffin died of stab wounds, according to testimony from the state medical examiner. Christian Griffin died the same way, in the same room as his mother.
Chasity Hammer died after being locked in a closet, shortly before Bosse set the mobile home on fire, prosecutors said. When her body was recovered, her lungs were full of soot and other toxic substances, the medical examiner testified earlier in the trial.
Katrina Griffin and her son died in another bedroom, where Mashburn said they were most likely chased by Bosse during the attack.
Prosecutors said that a broken knife found at the scene belonged to Christian Griffin and that they believe he was trying to protect his mother when Bosse stabbed him to death.
Once Katrina and Christian Griffin were dead or dying, prosecutors say Bosse turned his attention on Hammer, the youngest and most vulnerable victim.
Hammer's blood also was found on the suspect's jeans, the result of a kick to the face by Bosse, prosecutors said.
Susan Caswell, a McClain County prosecutor, said that Bosse began to burglarize the mobile home after all of the victims were incapacitated.
“(He took) 139 items,” Caswell said. “That's a lot of trips to your truck. Back and forth. Back and forth. He didn't care ... he wanted to get his stuff.”
Prosecutors say Bosse visited seven different pawnshops in the Oklahoma City area after the killings. He sold $337 worth of DVDs, video games and game consoles, Caswell said.
In his closing remarks, defense attorney Gary Henry tried to discredit the case against Bosse by questioning the thoroughness of the investigation and casting doubt on the prosecutors' timeline of events.
Henry also claimed that Bosse never tried to hide his identity when he pawned and sold Katrina Griffin's belongings.
“Just because it looks bad, doesn't mean it is,” Henry said.
Victims' family speaks
Katrina Griffin's stepmother, Ginger Griffin, said she doesn't think “closure” will ever come to her loved ones after losing the three young family members in such a brutal fashion.
Ginger Griffin, who testified at the trial, said the legal process was difficult because defense attorneys “want to dredge up the bad things.”
When asked what punishment she felt was most fitting for Bosse, Ginger Griffin simply said, “Death penalty.”
“I think the punishment should fit the crime,” she said.
And even though she claims to have become accustomed to seeing Bosse in close quarters since the legal process began, it was never easy for Ginger Griffin to be in the same room as the man who killed her stepdaughter.
“Every day ... looking at him and imagining him doing that ... with no remorse — that's hard,” she said, adding that the loss of the children hit especially hard. “They were just like our children ... we helped raise them. They brought us joy.”