Kely's nephew, a member of a neo-Nazi gang, was temporarily out of prison while he appealed his conviction for a political murder back in 2011. When Kely became upset that her nephew's dog had made a mess in the flat, the Nazi decided to strangle her until she calmed down.
After she was sufficiently calm, the Nazi then chopped her up into pieces and stored the body parts - some in a suitcase, others in the fridge.