PRAIRIE DU CHIEN, Wis. -- An Iowa man faces prison time after being convicted of killing his ex-girlfriend in Prairie du Chien in 2006.

27-year-old Michael Burroughs pleaded no contest Tuesday to first-degree reckless homicide in the death of 23-year-old Shannon Fischer.

Authorities say Burroughs admitted to killing Fischer in his apartment in December 2006 in a dispute over methamphetamine.

He kept Fischer's body in the apartment for several days, and then dumped it in the trash.

Fischer's disappearance had gone unsolved until October of 2010 when Burroughs walked into the Prairie du Chien Police Department and told a dispatcher he had killed Fischer.

As part of a plea deal, a felony charge of hiding a corpse was dismissed, and prosecutors agreed to seek a maximum of 15 years in prison, and no more than 20 years extended supervision.

Burroughs is scheduled for sentencing April 3.