SCOTTSBLUFF, Neb. (AP) — An 18-year-old man has been sentenced to 25 to 30 years in prison for his role in the death of a Scotts Bluff County corrections officer.

Guy Eagle Elk was sentenced Monday in the February 2014 death of Amanda Baker. Eagle Elk was convicted in March of aiding and abetting assault.

Prosecutors say Eagle Elk showed then-15-year-old Dylan Cardeilhac how to strangle Baker as part of an escape plan. Baker was attacked on Feb. 14, 2014, and she died three days later.

Cardeilhac was convicted of second-degree murder and is serving 60 years to life in prison.