OMAHA, Neb. (AP) — A Nebraska judge has added seven years to Erica Jenkins’ life sentence for assaulting three jail guards.

Jenkins was sentenced Monday for the assaults she pleaded no contest to.

Jenkins maintains that she was defending herself in the altercations with guards. But prosecutors say Jenkins has continually acted out and attacked officers.

In January, Jenkins was sentenced to life in prison plus up to 100 years for her role in the 2013 shooting death of Curtis Bradford.

Jenkins in the sister of Nikko Jenkins, who last year was convicted in the killing of Bradford, as well as the 2013 shooting deaths of Andrea Kruger and two others in separate attacks.