A 60-year-old former Minneapolis man now serving time in federal prison pleaded guilty Tuesday in Hennepin County District Court to a murder that had been unsolved for more than two decades.

Billy Daymond Bailey was charged with the beating death of 27-year-old Terrance B. Oliver on Jan. 29, 1993. The victim was a male prostitute dressed as a woman, court documents said. Bailey pleaded guilty to first-degree manslaughter and was sentenced to 11 years in prison.

He is currently serving a 20-year sentence at a federal penitentiary in Florida for counterfeiting and cocaine possession. After completing that sentence, Bailey will begin another prison sentence for the 1984 rape and murder of 69-year-old Agnes Faffrowicz at her home in northeast Minneapolis. He was convicted of that crime in 2005 and sentenced to life with parole, which means the earliest he would be able to apply for release would be 2031.

On Tuesday, he was sentenced to 11 years in prison, which will be served concurrently with his sentence in the Faffrowicz case.