11/13/2015 05:43 EST | Updated 11/13/2016 00:12 EST

Parents upset after son's killer pleads to lesser charge in Calgary shooting

CALGARY — A Calgary man has pleaded guilty to second-degree murder in the death of a 17-year-old boy who was shot in the head through a basement window.

The man, who was also 17 at the time of the February 2007 shooting, entered the plea Thursday.

He had originally been charged with first-degree murder after Adam Cavanagh was killed during a house party.

The man was convicted of the more serious charge in 2012, but the decision was overturned on appeal and a new trial was ordered.

Cavanagh's parents say they are disappointed with the plea and want an adult sentence.

A sentencing date will be set Feb. 5. (CHQR)