TYNDALL -- A Mike Durfee State Prison inmate was convicted last week of possessing marijuana while incarcerated in September.

On Aug. 13, Jonathan Gundvaldson, 33, pleaded guilty to the Class 6 felony and was sentenced to two years in prison. That sentence will run concurrently with a 20-year Minnehaha County sentence for burglary and grand theft and a 15-year Lincoln County sentence for burglary, both of which he was sentenced for in October 2012.

Charges were filed against Gundvaldson in May. A habitual offender charge was also filed, as Gundvaldson had been convicted of two felony drug offenses prior to the crimes for which he was already in prison.

Gundvaldson was ordered to pay a $116 drug control fee and $106.50 in court costs.