A Covelo man has been sentenced in an arson attack. The Mendocino County District Attorney’s Office reports that 31-year-old Derek Steven McCormack, was convicted by plea in August of last year of having committed arson of an inhabited residence – the home of a Potter Valley family. The Judge denied McCormack’s bid for a sentence of supervised probation after having reviewed the Probation Department’s background study and sentencing recommendation. McCormack was sentenced to 108 months in prison, the maximum allowed by law. Once released, he will be required to register annually for life with local law enforcement as a convicted arson offender.