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Yet his strange and disturbing story drove Anna’s mother Marianne crazy, leaving her in a state of powerlessness, anger and fury. On March 6, 1981, on the third day of the trial, Marianne decided to take matters into her own hands.
Somehow she was able to smuggle a gun into the courtroom, bypassing the security checks and all the guards. Shortly after entering the hall, she pulled the loaded gun out of her handbag, aimed at her daughter’s killer, and emptied the entire magazine. Seven of eight bullets found their mark, and Grabowski immediately went down. He died on the spot.
Immediately after the shooting, Anna’s mother dropped her gun, a Beretta M1934. Her voice then filled the room:
“He killed my daughter… I wanted to shoot him in the face, but I shot him in the back … I hope he’s dead.”
According to two police officers at the scene, Marianne also called Grabowski a “pig” after she opened fire.
She was arrested by police in the courtroom and initially charged with murder. During her trial in 1982, Marianne claimed that she shot Grabowski in a dream state after visualizing her daughter in court.
But according to experts who testified at the trial, Marianne’s act required special practice with the gun, indicating that she had planned and prepared everything ahead of the shooting.
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The mother was also examined by doctors and asked if she could give them a handwriting sample. In response, Marianne wrote: “I did it for you, Anna.” The sample was also decorated with seven hearts – which many interpreted as a tribute to each year of Anna’s life.
If convicted, Marianne was to face a lifetime of imprisonment.
The mother’s act of vigilantism received enormous media attention – not only in Germany but all over the world. Marianne was dubbed “Revenge mom”, and many thought she should be acquitted at the trial.
The grieving mom, who avenged the death of her beloved daughter, was widely praised and received a lot of encouragement and understanding – despite the vigilante justice she carried out.
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In the beginning, Marianne was portrayed as a saint by the media. But then journalists started to dig up her past. Newspapers found out that Marianne gave up her first two children for adoption. The fact that she spent a lot of time in the bar she worked at was just one of the details that began to tarnish the picture of a loving and self-sacrificing mom.
In 1983, Marianne was convicted of premeditated manslaughter and unlawful possession of a firearm. She was sentenced to six years behind bars but was released after three years.
Her penalty divided the people, as shown by a survey from the Allensbach Institute. About 28 percent saw her six-year sentence as appropriate, with another 27 percent deeming it too heavy and a further 25 percent believing it to be too soft.
After serving her time behind bars, Marianne emigrated to Nigeria and married a German teacher. In 1990, she got divorced and moved to Sicily, Italy.
Unfortunately, Marianne was eventually diagnosed with pancreatic cancer and moved back to her motherland and hometown, Lübeck.
Her act of revenge continued to live in the memories of many Germans; newspapers still wrote about the incident well into the 1990s.
In 1994, 13 years after her act, she gave a rare interview on German radio.
“I think there is a very big difference if I kill a little girl because I’m afraid I then have to go to prison for my life. And then also the ‘how’, so that I stand behind the girl and, strangle her which is taken literally from his statement: ‘I heard something come out of her nose, I was fixated, then I could not stand the sight of her body any longer,’” she said.
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In an interview with Das Erste TV channel in 1995, Marianne confessed that she had shot Grabowski after careful consideration and to prevent him from spreading more lies about Anna.
On 17 September 1996, Marianne passed away at a hospital in Lübeck. She wanted to die in her previous home in Sicily but never got there.
Marianne was later buried next to her beloved daughter in a graveyard in Lübeck.