Nathan Robinson who killed his father claims he was abused as a child Nathan Robinson admitted killing his father and dismembering his corpse Robinson claims victim William Spiller abused him as a young boyÂ Winchester Crown Court heard Robinson attempted to clean the sceneÂ A downstairs neighbour reported a 'pink liquid' seeping through his ceiling Robinson said he discovered a flyer advertising his mother as a prostitute He has pleaded not guilty for the murder of his father in May 2013 He has admitted manslaughter by means of diminished responsibility The trial continues Â A man who killed and dismembered his father has told a court that he was abused as a child by his victim, and his mother was a prostitute who advertised her services of having sex in cars. Nathan Robinson, 27, used a Stanley knife, hacksaw and a saw to cut up the body of his father, William Spiller, at the flat they shared in Bournemouth, Dorset, in May 2013. He is on trial at Winchester Crown Court accused of the murder of the 48-year-old taxi driver, which he denies, but admits manslaughter on grounds of diminished responsibility. Victim William Spiller, right, was killed by his son Nathan Robinson, who accused him of abusing him as a child. Mr Spiller is photographed with his partner Glenys Molyneaux, who is not the accused's mother The trial has heard that Robinson cut up his father's body and placed the parts in storage boxes with a television on top. The head was placed in a box and put in a filing cabinet. He tried to clean resulting mess with a specialist steam cleaner he purchased from Homebase, although a neighbour living in the flat below complained of a 'pink liquid' seeping through the ceiling.Â The defendant told the court that he had completed a mathematics degree at Aberystwyth University but had failed to complete a masters degree in bio-fuels and managing the environment. He explained that he completed the taught part of the second degree but did not finish the dissertation after he became 'distracted' at finding out about his mother's activities. He said: 'At the time I was meant to be working on my dissertation I took a brief holiday to Thailand. When I came back I started having difficulties because of an advertisement of my mum's that I found at a house. 'I found an advertisement of my mum's advertising for sex in cars with her current telephone number. My mum has always been one to change her telephone number frequently. That affected me very greatly, it started bringing back memories of things I had seen and experienced in my childhood. Robinson added that his mother was visited by environmental health officers at around the same time. He said: 'My mum had a lot of animals. The council occasionally liked to check up they were being looked after. My mum never usually keeps a clean house, in the kitchen there would be animal droppings and rubbish bags everywhere, not very hygienic to be honest. Michael Vere-Hodge QC, defending, told the jury that when police interviewed neighbours of the defendant's mother, Elaine Robinson, they told officers that 'it appeared to them she worked as a prostitute' when her son was younger. Robinson said that when he found his mother's advert in May 2011, he went to visit his father and accused him of causing her to enter prostitution. He said: 'I found the note advertising my mum and I went down to see my father and I sort of accused him of being the reason my mum went into prostitution in the first place because I know the way he is towards women. I also wanted to know if I was the product of a paid encounter. Describing his father's response, he said: 'He very much knew about it, he told me he wasn't the reason she went into prostitution and that at the time when he was with my mum, he loved her.' Winchester Crown Court, pictured, heard that Nathan Robinson remembered being abused as a child after he saw a flyer featuring his mother offering sexual services in cars in return for payment Â He told the court that when he was younger, a paternity test was carried out which showed that Mr Spiller was his father. Robinson told the court that he was abused by a man who looked after him at a flat used by his mother for her 'employment'. He said that he started recalling this abuse when he went for a second, longer, trip to Thailand. He said: 'I had been having a difficult time, I was heavy drinking, not really socialising. It was a very difficult time because I was having memories of my childhood. I was having some very invasive memories of childhood abuse I can remember being at a flat which would have been a flat my mum was using for employment, at the hands of someone she had left me with. He said that it was sexual abuse on a few occasions. Robinson said that in early 2013 he began to recall other memories of being abused by his father. He said: 'It was sexual abuse in a hotel. I am not exactly sure of the age but it would have been about 13. He said that he had not told counsellors of this abuse prior to his arrest as he had not been seeing a psychiatrist at the time. The court heard that he was diagnosed as suffering from anxiety and a depressive disorder and was receiving medication for these symptoms. He also said he had been diagnosed as suffering from post traumatic stress disorder caused by the childhood abuse. He also suffered from a fast heartbeat, he said. He added: 'It's horrible, it's not just the same as being abused, it's different when you are aware it was at the hands of your dad.' The court heard that Robinson attempted to Â remove his father's blood from the scene with a steam cleaner purchased from Homebase, Â while a neighbour reported a 'pink liquid' seeping through his ceiling He said that his father did not like him seeing a psychiatrist and this led to him stopping his counselling sessions. Robinson told the court that he had signed an IOU note to his father for Â£36,000 including a Â£10,000 loan and for lost earnings from a taxi that he had inherited. He said that his father had also given him money to go to Thailand and to return back to the UK. He added that during his stay he had failed to pay for the taxi insurance which landed his father in court for driving without insurance although he was given an absolute discharge. Robinson said that his father became violent towards him over this. He said: 'He was being physically violent towards me, a lot of shouting, swearing, a lot of bullying, calling me names. He was scared of potentially losing his driving licence because his driving licence was his main way of earning money, he has always been a driver of sorts such as a taxi driver. Winchester Crown Court heard that Robinson confronted his father about the abuse on the day he was killed. He said his father hit him on the chest and called him 'a little c***'.Â Robinson said he 'carefully dismembered' the corpse before packing it into plastic storage boxes. He then placed a television on the top.Â The court heard that Robinson used a Stanley knife and a hacksaw to dismember his father's corpse. He then used the steam cleaner he purchased from Homebase to clean up the mess.Â The following day, Robinson travelled to Glasgow to visit friends. He took with him a boxset of the Saw horror films.Â Â In the following month, he further covered his tracks by using his father's mobile phone, sending text messages posing as Mr Spiller, the court heard. Robinson was arrested on June 18 last year - telling police 'Is this a joke?' - a day after Mrs Molyneux reported Mr Spiller missing to police. He had already aroused the suspicion of neighbour David Kiff who lived below their flat and noticed pink liquid dripping through the ceilings and walls, the court heard. Nigel Lickley QC, prosecuting, said the source of the pink liquid was diluted blood dripping through from the steam cleaner Robinson went out to buy. A pathologists report into Mr Spiller's death found a number of knife wounds on Mr Spiller's torso, left side of his face and the top of his head, alleged to have been caused when he was alive. However, Mr Lickley said: 'The fatal wound may have been obscured by his body's dismemberment and decomposition.' Mr Spiller was identified by dental records as the body was so decomposed. Mr Lickley told the jury earlier in the trial how police entered the flat, noting foul smells and flies, and found Mr Spiller's body in plastic storage boxes. Robinson said that he did not have any recollection of the day of the killing apart from a series of images. But he did say that he accepted that he had killed and dismembered his father and put the body parts in storage boxes. When asked by defence QC Michael Vere-Hodge what caused the incident, he replied: 'I honestly don't know.' He continued: 'I can remember a great deal of anger and being very scared at one point. 'From what I remember in the part where he was lying up against the bed on the floor, I can remember that his face was changing, I wasn't recognising his face, I can remember being scared when seeing that I also have a memory of being in the shower. I am washing blood off me and whilst I am showering I am calling my dad a dirty c***. He added that the anger he felt was 'more than I have ever felt before but I do not get angry a lot'. He said the time span of the whole incident felt to him as if it lasted 10 minutes but said that he understood that this was not a feasible length of time. When asked if he knew why he had put his father's head in a box in the filing cabinet, he said: 'No, other than, as I explained, of being scared of seeing the faces change. 'I didn't recognise his face and it was changing between faces I didn't recognise.'Â Robinson said that when he then returned to Bournemouth he had formed the idea of taking on the role of his father, who the court has heard weighed 25 stone. He said: 'I was going to be my dad, I believed that I could put on his clothes, he was a large guy, I was going to use a duvet under the shirt and I was going to be my dad.' He admitted replying to messages on his father's phone but when asked why, he replied that he was confused. He added: 'Mentally I was very messed up. I was so detached from it that I didn't believe it. I was having really weird things like not recognising myself in the mirror and things not looking real to me. Robinson added: 'I loved my dad, regardless of anything that had happened in the past, he was still my dad.' Robinson denies murder, but has pleaded guilty to manslaughter due to diminished responsibility. The trial was adjourned until tomorrow.Â