6/20/2017 - Oklahoma County -- Samuel Michael Harman, 22, has been sentenced to over three decades in prison after pleading no contest Friday to second-degree murder, kidnapping and violating a victim's protective order in the death of his disabled father.

According to court records, Harman's mother and father had obtained a protective order against Harman because he was constantly high on drugs and violent towards them.

In June of 2015, Harman barricaded himself and his father, 70-year-old Marcus Harman, inside his parent's home.

After being released, Marcus Harman complained of severe headaches and died the next day of an apparent head injury. Samuel Harman later admitted to kidnapping his father and breaking his cell phone so he could not call for help.

Last Friday, Harman also pleaded guilty in five other criminal cases committed while in custody after his father's death. Those crimes included possessing handmade weapons, heroin and assaulting a jail deputy.

According to defense paperwork filed on Harman's behalf, he had been treated in the past for schizophrenia and anxiety.

Harman was sentenced to 35 years in prison.