SCOTTSBLUFF, Neb. (AP) — Sentencing has been delayed for a teenager convicted as an adult of helping plot a fatal attack on a Scotts Bluff County jail guard.

The Scottsbluff Star-Herald reports (http://bit.ly/1K0Zr0w ) that 18-year-old Guy Eagle Elk had been scheduled to be sentenced Friday, but a judge on Tuesday ordered a 90-day evaluation of the teen.

The order says sentencing will be rescheduled at a later date. Eagle Elk faces up to 50 years in prison.

Eagle Elk was convicted in March of aiding and abetting assault in the Feb. 14, 2014, strangulation of Amanda Baker. Prosecutors said Eagle Elk showed then 15-year-old Dylan Cardeilhac how to strangle Baker. Prosecutors say Cardeilhac wanted to escape and needed Baker’s keys.

Cardeilhac was convicted of second-degree murder and sentenced to at least 60 years.