A farmworker who last month admitted to killing his girlfriend in 2016, was on Wednesday sentenced to life imprisonment. Nampa reports that Benedictus Kooper admitted to murdering his girlfriend Kalista Erastus, at Farm Vuurslag in the Gobabis District on 03 October 2016 by stabbing the victim about 13 times and crushing her skull with an axe. In respect of this murder charge, 29-year-old Kooper was sentenced to life imprisonment. Acting High Court Judge Eileen Rakow handed down the sentences in the matter on Wednesday morning. According to the judge, the evidence before court by the State witnesses was satisfactory, credible, reliable and truthful.