South African news channel eNCA is reporting that Carl Pistorius, brother of Oscar Pistorius, is due to stand trial in a separate case involving the death of a female biker.
Culpable homicide case against Carl Pistorius - over 2010 accident death of woman biker - postponed to next month. @encanews
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His mother Princess Diana was killed in a car crash in Paris in 1997 when he was just 12 and his brother William was 15.
The 21-year-old, who was arrested on Sunday, also allegedly injured two other people in the attack in the German city of Reutlingen.
She was going to the aid of a family member who got out of the car in the middle of the park and was dragged away by a different tiger.