ANN ARBOR, Mich. -

A man who authorities say killed a competitive billiards player from the Ann Arbor has pleaded guilty to second-degree murder in the asphyxiation death.

According to court records, 45-year-old Gregory Noack on Wednesday accepted a plea deal that will put him in prison for at least 40 years in the death of Dawn Fital in their Pittsfield Township apartment last June. His plea to that and other charges came just days before a planned trial.

Sentencing was scheduled for June 7.

Noack told police that he snapped after Fital refused to have sex. He said they had reconciled after she had broken up with him in a phone call from a Las Vegas billiards tournament. 

The 45-year-old Fital's body was found June 16, 2011, in a suitcase in a Hobart, Ind., pond.