Anna Bachmeier was seven years old when she was abducted, raped, and murdered by Klaus Grabowski. In the courtroom during his trial, Anna's mother, Marianne Bachmeier, shot Grabowski 8 times. He died on the courtroom floor.

Anna Bachmeier was born in Lübeck, Germany, on November 14, 1972 to Marianne Bachmeier, 23. Anna's father chose not to be involved in the pregnancy or Anna's upbringing, so Marianne was raising Anna as a single parent. Marianne worked as a waitress in Lübeck while Anna attended elementary school.

On the morning of May 5, 1980, Anna had an argument with her mother. She was upset and wanted to see a friend of hers, so Anna opted to skip school that day. Shortly after leaving her home pretending to go to school, Anna was lured into an apartment by a neighbor, Klaus Grabowski, a 35-year-old butcher with a promise that she could play with his cats. Klaus Grabowski was very well known in the community and among law enforcement. He had received a probation sentence in 1973 for strangling a 6-year-old girl. In a second attack just a couple of years later, he sexually molested two 9-year-old children. Grabowski accepted the option of chemical castration in lieu of a prison sentence in 1976. In 1978, approximately two years later, Grabowski secretly began hormone therapy to reverse the effects of the chemical castration.

The trial against Grabowski began on March 3, 1981. Grabowski had testified that 7-year-old Anna had attempted to seduce him and that he had killed her because she had threatened to tell her mother of the attack unless he gave her money. Marianne Bachmeier took personal offense at Grabowski's allegations regarding her daughter. On March 6, 1981, Bachmeier could secretly carry a.22 caliber Beretta 70 pistol in her purse into the packed courtroom. She saw Grabowski in the front of the courtroom. Bachmeier raised the Beretta 70 and opened fire on Grabowski. She fired 8 shots, striking him 7 times. Some reports say that he died almost instantly on the courtroom floor.