Due to tight German privacy regulations, the messages of 19-year-old Sarah M have been exposed after she was charged with viciously slashing ex-security guard Zayed in the neck as he drove her away from her house.

According to German news outlet Bild, the teenager displayed posters of US mass murderers Ted Bundy and Richard Ramirez in her room before telling a friend about her plan to kill a lover every day starting on May 1, 2021.

"I'm going out now, I want to kill my first one. I'm excited. Wish me luck that it works," she mentioned.

Daily Star said that Sarah made a phony dating profile under the name Domina Cherry and began communicating with a security guard named Zayed, who is 38 years old.

Zayed picked her up from her flat in Bavaria the same day before the woman stabbed in him the neck with a knife while driving.

He was able to dodge Sarah's knife attack and stop his car, but his injuries caused him to fall into a coma, and he died three weeks later in hospital.

Officials arrested Sarah M, who is originally from Switzerland, in the neighboring town of Ebermannstadt an hour later, drenched in blood.

Sarah's former close friend Tim B. told Bild that he couldn't look her in the eyes throughout the trial.

Sarah wrote a disturbing letter to Tim from her jail, which police used to piece together her murder motive.

He said per reports : "I thought the man touched her. But she told me what happened and said she planned it."

He claimed he had always seen anything odd about his bloodthirsty ex-colleague.

Fatima Al-Salihi, Zayed's 17-year-old sister, and his father, Rabeea Al-Salihi, 52, had hoped Zayed would wake up from his coma and tell his story.

Zayed, on the other hand, regrettably died before he could see his assailant sentenced to 12 years in prison.

When officials sentenced Sarah M. to a 12-year term in a psychotherapeutic facility for the murder, she responded by holding up her left palm, on which she had scrawled a pentagram — a Satanist emblem.

Sarah M had displayed "a complete lack of empathy" for her victim, the judge said, pointing out that she had researched where to stab a person in the neck and how long it would take to die online before the murder.

Sarah M had drug problems and had drawn swastikas on her hands, which is an illegal symbol in Germany, before to the murder.

Since 2017, she had also been in and out of court. Officials once sentenced Sarah to community service for calling cops "b*****ds" and "sons of b******."

Experts diagnosed Sarah with borderline syndrome and significant suicidal inclinations at the Bamberg psychiatric hospital just two months before the murder.

A Bronx man who was arrested for assaulting and knocking out a paramedic has been found to have also allegedly killed his girlfriend by slitting her throat. This is a representational image. PIXABAY

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