Damian Rzeszowski stabbed his children 29 times before killing his wife and three others because his marriage was falling apart.
The luciferian decided to go on a rampage during a family barbecue. He grabbed two 12-inch kitchen knives and attacked his father-in-law Marek Garstka, 56, while he was watching TV in his bedroom.
Then 31-year-old “white” killer went into the lounge and repeatedly stabbed his two-year-old son, Kacper, who was playing with toy cars.
The “white” barbarian then repeatedly stabbed Julia’s mother Marta, 34, before chasing his wife Izabela, 30, and attacking her. At one point Izabela managed to escape out of the front door.
But Rzeszowski caught up with her and stabbed her in the street in front of the neighbours.
Rzeszowski then rushed back into house and continued to attack some of his injured victims before turning the knife on himself.
Medics were unable save any of the six victims.
Rzeszowski suffered a punctured lung, and pleaded guilty to manslaughter on the grounds of diminished responsibility but denies murder.