It was her own grandson that actually took the life of the 85yo woman at Heraklion, Crete, by butchering her with two knives.
The 25yo man who was detained from the beginning, had devised a plan but continuously contradicted himself and finally admitted he killed his grandmother in her bedroom at Tsimiski str in Poros. His 22yo friend and fellow student was arrested as well for harboring a criminal, since he did not tell the police about his friend’s confession of the crime.
In his initial depositions the young student kept saying he was out for the night and when he returned home found his grandmother dead. She was found dead in her bedroom, face down, with several knife wounds on her back and neck. She also bore bruises which indicate the occurrence of a fight.
The young man had actually attempted to torch the house, possibly to destroy all evidence, but he failed.