ASPEN, Colo. (AP) A former Denver anesthesiologist has pleaded guilty to second-degree murder in the bludgeoning death of a prominent Aspen woman and was sentenced to 20 years in prison.
The Aspen Times reports 66-year-old William F. Styler entered his plea Friday after accepting an agreement with prosecutors.
Prosecutors said Pfister killed 57-year-old Nancy Pfister on Feb. 26, striking her with a hammer while she slept.
Styler, his wife and Pfister's personal assistant had all been charged with first-degree murder, conspiracy and being an accessory after the fact.
Prosecutors dropped all the charges against 62-year-old Nancy Styler and Pfister's assistant, 56-year-old Katherine Carpenter.
Pfister's parents co-founded the Buttermilk ski area. Pfister had been renting her home to the Stylers while she was vacationing in Australia. She was killed shortly after she returned.