Arslan admitted to the attempted murder of Mr Marsden, who caused grievous bodily harm to Ms Boorman, and a charge of racketeering, but denied murder.
Instead, he claimed the charge he should face for the killing of Mr Boorman was manslaughter for diminished responsibility.
At the April court hearing, the jury learned that Arslan was not suffering from psychosis but had been diagnosed with a personality disorder.
It manifested itself in extreme anger and aggression at perceived insults, high-flown claims about oneself, and an exaggerated sense of one’s own importance.
Prosecutors said that although Arslan has a personality that is outside of the ordinary, he is in full control of himself and knows the difference between right and wrong.
The defense argued Arslan’s personality disorder was in itself an abnormality of mental functioning and therefore offered a defense against homicide.
He was unanimously convicted of murder.
Ms Justice Cutts on Thursday sentenced him to life imprisonment with a minimum of 38 years and said: “This afternoon without any cause whatsoever you took the life of a decent family man, deprived his children of their father, his wife of her husband and his mother and siblings of one beloved son and brother.”
At the time of the murder, Arslan was the subject of an injunction barring him from threatening or abusing his neighbors and had been served with an eviction notice.
https://www.telegraph.co.uk/news/2022/06/09/can-arslan-man-knifed-neighbour-death-jailed-38-years/ Man who knifed neighbour to death is jailed for 38 years