A father who has admitted killing six people, including his wife and two children, is still "hearing voices inside his head", a court has heard.
Damian Rzeszowski, 31, a Polish immigrant who was living in Jersey, is on trial for the murders of his wife Izabella, 30, his daughter Kinga, five, and his son Kacper, two.
He is also accused of stabbing his father-in-law Marek Garstka, 56, as well as family friend Marta de la Haye, 34 and her little girl Julia, five.
The attacks took place at Rzeszowski's flat in St Helier.
A psychiatric consultant, Dr Dale Harrison, who treated Rzeszowski in the aftermath of the attacks, said the defendant continued to "hear voices inside his head".
Dr Harrison told the court that after first seeing Rzeszowski last August he prescribed him Risperidone, an anti-psychotic drug.
He also prescribed tranquilizers and anti-depressants, the court heard.
Victim Kinga Rzeszowski suffered lacerations to her arms He revealed that Rzeszowski was known to the psychiatric services on the island and was suffering from "moderate depression" before the attacks.
The weapons used to kill all six victims were passed around the court as evidence.
The first knife was a similar size to a bread knife, but without a serrated edge and with a pointier tip.
The second was even larger, and wider, probably used as a carving knife.
The court fell quiet when a painting was handed to the judge. It was the last thing the children did before Rzeszowski set upon them.
3D images were shown of each of the victims to show the extent of their injuries.
Forensic experts said in statements that all three children had suffered stab wounds and lacerations to their arms, consistent with trying to defend themselves.
Rzeszowski has remained motionless and emotionless throughout proceedings, speaking only to ask a security guard for a glass of water.
He is dressed simply in a blue t-shirt and looks considerably heavier than in photographs of him prior to his arrest.
He has admitted the killings, but denies murder, pleading guilty instead to the lesser charge of manslaughter by diminished responsibility.
