By Nina Nazarova
MOSCOW (BBC Russian Service) — In July 2018 three teenage sisters stabbed and battered their father to death in his sleep, in their Moscow flat.
Investigators have confirmed the girls’ father abused them physically and psychologically for years.
Charged with murder, the sisters and what should happen to them have become one of the hottest topics of debate in Russia and more than 300,000 people have signed a petition calling for their release.
On the evening of July 27, 2018 Mikhail Khachaturyan, 57, summoned Krestina, Angelina and Maria, who was a minor at the time, one by one to his room. He scolded them for not cleaning the flat properly and sprayed pepper gas in their faces.
Soon afterwards, when he had fallen asleep, the girls attacked him with a knife, hammer and pepper spray, inflicting fatal wounds to his head, neck and chest. He was found to have more than 30 knife wounds.