DENVER — The third and final suspect involved in the attempted robbery and deadly shooting of a Denver taxi driver has pleaded guilty to an added count of aggravated robbery with a deadly weapon, the Denver District Attorney’s Office said Monday.

Christian Willis was 17 years old on Sept. 5, 2015, when he participated in an attempt to rob 49-year-old Darren Bloomquist. It was during that robbery attempt that Bloomquist was shot and killed.

Willis was also facing one count of felony murder, which was dismissed as part of his guilty plea. He was arrested on Jan. 5 and charged as an adult.

Willis’ accomplices have already been sentenced for the crime.

Nicholas McKinney, who was also 17 at the time, was charged as an adult and pleaded guilty in March to one count of aggravated robbery and menace with a deadly weapon. He received 25 years in prison for the felony.

Dasean Perry, who was 19 at the time, was sentenced in December to 48 years in prison after he pleaded guilty to second-degree murder and attempted aggravated robbery.

Willis will be sentenced Sept. 8.