German man was accused of shooting dead his parents, four relatives and badly injuring two others at a family gathering admitted to the crime on the first day of his trial on Monday.
The 27-year-old defendant faces charges of murder and attempted murder according to the constitution.
The man allegedly shot and killed family including his parents, his step-sister, his step-brother, his uncle and his aunt in the town of Rot am See, located in the south-western state of Baden-Wuerttemberg.
Another aunt and uncle succeeded in escaping despite they were shot.
The man is said to have shot 30 bullets during the bloodbath on Jan. 24, before calling the police and handing himself over to them.
The shooting took place in the father’s apartment, in which the alleged killer also lived. The family had met for a funeral there.
The man said he had been planning the attack for some time, having joined a marksmen’s club and legally obtained a gun prior to the crime.
He gave a detailed statement to the court in the town of Ellwangen, explaining that he had acted out of hatred towards his mother, whom he described as abusive.