Apr 12, 2013 4:36 PM by JD Downing
DENVER (AP) - A man charged with murder in the shooting death of a Denver police officer at an outdoor concert has pleaded guilty to a lesser charge.
Twenty-two-year-old Rollin Oliver pleaded guilty to second-degree murder on Friday.
The Denver Post reports Oliver faces at least 16 years in prison when he is sentenced at a hearing scheduled for June 21.
Oliver was accused of fatally shooting officer Celena Hollis when he fired into a crowd at a jazz concert last June. His attorneys have said he was being pursued by gang members.
Prosecutors dropped a charge of first-degree murder in exchange for Oliver's guilty plea.
Investigators say Hollis was rushing to break up a fight when she was killed. The 32-year-old officer was a single mother who previously worked in Detroit.