State v. Mainwaring

¶1 In 1999, at the age of sixteen, Jonathon Mainwaring (Mainwaring) was convicted of mitigated deliberate homicide and sentenced as an adult by the Valley County District Court to the Department of Corrections (DOC) for a term of 30 years, with 20 years suspended. Less than five years later, after he turned 21 and after the remainder of his sentence had been suspended, Mainwaring committed felony assault on a minor. Following the filing of assault charges in the Yellowstone County District Court, the State filed notice of its intent to designate Mainwaring as a “persistent felony offender”…