The Oklahoma Court of Criminal Appeals has upheld the murder conviction and death sentences of a man in the deaths of a woman and her two children in Dibble.
The court on Friday rejected appeals by 33-year-old Shaun Michael Bosse.
Bosse was convicted and given three death sentences for the 2010 deaths of 25-year-old Katrina Griffin, 8-year-old Christian Griffin and 6-year-old Chasity Hammer. Bosse was also convicted of arson for burning the family's mobile home.
Evidence showed Katrina Griffin and Christian Griffin were stabbed to death and Chasity Hammer died of smoke inhalation and burns.
Bosse was arrested after investigators learned he had pawned items taken from the home.
Bosse's appeal included claims of improper evidence, prosecutorial misconduct, ineffective defense counsel, improper jury instructions and improper admission of photos of the victims.