Iowa man who aided, abetted 2015 Mitchell bank robbery gets 180 days in jail While he faced a maximum sentence of up to 25 years in prison, Nolan Kratky, 23, of Ames, Iowa, received six months in jail for aiding and abetting in the 2015 bank robbery that took place at First Dakota National Bank in north Mitchell. Written By: Sam Fosness | × The Davison County Public Safety Center serves as the home for county lockup. (Matt Gade/Republic) An Iowa man who was an accomplice in a bank robbery that occurred in Mitchell in 2015 was sentenced Tuesday to serve six months in jail and pay restitution fees amounting to over $50,000.