An Afghan migrant who stabbed a dog walker to death and left his landlord fighting for his life in a 'shocking and terrible' rampage was in a 'psychotic state', a court heard.Dawood Safi looked 'possessed' when he fatally knifed Wayne Broadhurst, 49, in his neck, chest and side 14 times on October 27 last year.Minutes before Safi, 28, had launched a frenzied assault on his 45-year-old landlord Shahzad Farrukh, who had told him to leave a property he was renting to him two days beforehand.This morning prosecutors accepted Safi's guilty plea to manslaughter on the basis of diminished responsibility after he previously denied a charge of murder.Jonathan Laidlaw KC, prosecuting, told Southwark Crown Court that Mr Broadhurst's family wanted to see Safi found guilty of murder. The court heard that Safi, who arrived in the UK 'concealed in a lorry' in 2020, was in the midst of a mental health episode when he attacked Mr Broadhurst in a 'entirely unprovoked, ferocious and senseless killing'. Mr Laidlaw explained that where there was agreement between experts on a defendant's mental condition a defence of diminished responsibility could be accepted.He added: 'However unpopular that might make the prosecution with the loved-ones of Mr Broadhurst, a plea of guilty to the lesser offence of manslaughter will be accepted.' Dawood Safi has admitted killing Wayne Broadhurst on October 27 last year in West London'The defendant, according to four psychiatrists who have examined him since October of last year, was in a psychotic state.'In other words, he had lost contact with reality and was unable to distinguish between what was real and what was not.'Because of the defendant's psychotic state, he is not being tried for murdering the man who lost his life at the defendant's hand.' Safi also admitted causing grievous bodily harm in relation to Mr Farrukh and causing actual bodily harm to the teenage boy.However, Safi is on trial for two counts of attempted murder which he denies relating to Mr Farrukh and the teenager.Before he attacked Mr Broadhurst, Safi stabbed his landlord several times in his neck, chest, and back, leaving Mr Farrukh calling out for help and fighting for his life.A 14-year-old boy, who cannot be named for legal reasons, ran to assist the landlord and received wounds to his hands as he did so.Mr Laidlaw explained to jurors how Safi having attacked his landlord was walking down Midhurst Garden, in Uxbridge, West London when Mr Broadhurst turned onto the road. Wayne Broadhurst was fatally stabbed in an 'entirely unprovoked ferocious and senseless killing'The prosecutor said: 'It was at that time the dreadfully unfortunate Mr Broadhurst, who was taking his dog for a walk, emerged from an alleyway,' Mr Laidlaw added.'At that point the defendant chased Wayne Broadhurst down, forced him to the ground, where he repeatedly stabbed the defenceless man.'Mr Broadhurst was killed almost instantly, suffering unsurvivable wounds to his neck.' Safi appeared in court via video-link from Broadmoor maximum security psychiatric hospital wearing a black sports jacket, aided by an Arabic interpreter.Jurors were told that when Safi came to the UK he lied about his age claiming he was 17, so he 'could claim asylum', the court heard.In a video recorded interview, Mr Farrukh said to officers two days before he was attacked by Safi, he told him to leave the property by October 30 as he was worried about his behaviour.One witness, Daniella Jarvis, told police Safi looked 'like he was possessed' after the initial attacks.Mr Broadhurst worked as a street sweeper for Hillingdon Council.Safi denies two counts of attempted murder.The trial continues.