Wednesday justices of the Third District Appellate Court in Ottawa filed their decision after hearing arguments in January.
Kolb is serving a 53 year sentence for the 2005 killing of 16 year old Adrianne Reynolds. Kolb was 16 at the time, and hoped judges this year would take her age into account at the time of the murder, and consider other factors such as competence and family background.
Appellate judges however ruled the local judge adequately considered how old she was when Reynolds was killed, and that she failed to show her long prison sentence was un-constitutional.