A court heard that the cannabis-smoking teen who fatally stabbed his millionaire restaurateur grandmother was also taking cocaine, ketamine, and ADHD medication before the crime.
In January 2021, Sue Addis, 69, was found dead in the bath of her $1.2 million Brighton home. Pietro Addis, 19, has admitted to killing her.
Teen Stabs Grandmother Multiple Times
He attacked her in a frenzied manner, stabbing her 17 times and leaving her to die in a bloody bathtub before dialing 999 and saying, “I’m calling to turn myself in.” A murder has occurred.
Mrs. Addis was the proprietor of the well-known Brighton eateries Donatello’s and Pinocchio’s, which were frequented by a number of Premiership football players as well as stars like Bill Nighy, Katie Price, Michelle Collins, and Michelle Collins.
Before the murder on January 7, 2021, Addis was using a variety of legal and illegal drugs, the Lewes Crown Court heard today. The teen had consumed cocaine, ketamine, and MDMA in addition to smoking cannabis on a regular basis.
He was also taking Elvanse, a medication prescribed for him to treat his ADHD, Xanax, an anti-depressant, and Adderall. The catering student was also taking Letrazole, a drug used to treat breast cancer, from his grandmother’s medicine cabinet.
In the months preceding the killing, Addis’ behavior had gotten worse, the Lewes Crown Court was informed.
Addis was described as being depressed, paranoid, despondent, anxious, and worried because he had stopped attending college and showing up to work at the family restaurant.
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Addis’ Mental Health
The teen’s mental state, according to the psychiatrist, was not due to drug-induced psychosis; rather, it was a small part of the overall picture of his mental health.
The teen’s mental health had reportedly been deteriorating for some time, according to Dr. Misch, who cited reports from friends and family that he was starting to become paranoid as evidence.
He acknowledged that the manner of the death was unusual and caused alarm, particularly given the use of three different knives in the fatal attack.
He continued by saying that when he spoke to Addis in jail, the teen understood his situation but remained silent when pressed.
The court heard Addis say, “My nan was looking at the knives and looking at me before the incident happened. I believed she was going to murder me.”
Leo, Stefano, and Mikele, three of Mrs. Addis’s sons, all of whom worked at the restaurants, were highly regarded members of Brighton’s business community.
But as his behavior deteriorated and he skipped college and started working at the family restaurant, her grandson started regularly smoking cannabis and taking antidepressants.
After a heated argument, he left the home where he had been living with his father Leo, and stepmother and moved in with his grandmother.
