
Serving a life sentence for murders, Today Niels went on trial for another charges that he killed another patients.
the trial was in Oldenburg. they started with a minute of silence to remember the victims.
he was convicted in 2015 for killing two patients . Later investigators determinate the total of the victims was to high
The youngest of his victims was 34-years-old and the oldest was 96.
investigators looked into 200 suspicious cases and have exhumed 130 bodies for tests.
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