A student high on miaow miaow stabbed his mother 11 times before cutting off his own penis at an 'exceptional ' attack in their home . Charles Mann launched the frenzied attack on his mother , Emma , in December 2013 after bingeing on the party drug and copious amounts of alcohol . After stabbing his mother repeatedly the 21-year-old turned the knife on himself to cut off his genitalia and was heard shouting : ' I love you but this is the prophecy ' near their home in Haywards Heath , West Sussex . Charles Mann , 21 , stabbed his mother Emma 11 times and cut off his own penis after taking a cocktail of miaow miaow , cannabis and alcohol . He was jailed for 16 months today after admitting Grievous Bodily Harm . As her son entered the dock at Hove Crown Court , Ms Mann was seen mouthing ' I love you ' in his direction . She required surgery for multiple punctures to one of her lungs and was wounded on her arms , head and neck following the attack . The court heard how she made a frantic 999 call at 6.20am on December 29 , telling operators : 'My son 's just attacked me and stabbed me and he 's going mental downstairs with the knives . ' Ms Mann was woken when her son returned home and began 'trashing ' his room . The court heard how he followed her into the kitchen where he stabbed her 11 times . The 21-year-old , who received treatment at a psychiatric facility before being transferred to Lewes Prison , was so high during the attack he was 'not responding to pain ' . 'He was not reacting to pain and was described as manic and deranged , ' said prosecuting counsel Amy Packham . When police arrived at the family home , he is said to have told officers : `` I have stabbed her multiple times , I have killed her . The 21-year-old was sentenced to 16 months behind bars after pleading guilty to Grievous Bodily Harm . His mother , right leaving court , was seen mouthing ' I love you ' during the hearing . `` I have stabbed my mum and I need to be punished for what I have done . '' 'He said he had taken miaow miaow , loads of lines of it , and a lot of alcohol . He appeared manic and deranged at the time . He was said to have described himself as a 'paedophile ' to police officers and begged : ' I do not want to live . 'Take me to the light , I can see the vampires . ' After pleading guilty to Grievous Bodily Harm at an earlier hearing the 21-year-old was jailed for 16 month , reduced to eight . He will only serve another four weeks owing to the time already spent in custody . Sentencing , judge David Rennie described the family 's case as 'wholly exceptional ' . Earlier Ms Mann spoke at the difficulty of seeing her son 's fate 'already sealed ' . 'This case has a number of features which make it if not unique wholly exceptional . The lack of total awareness and capacity to form intent was the direct result of drug induced psychosis , ' said Judge Rennie . ' I further recognise that in your psychotic state you inflicted life altering injuries on yourself and have taken this cocktail of drugs before without any particular side effects . 'Your mother is an extraordinary human being who has conducted herself with enormous dignity , and I thank her very much indeed . ' David Etherington QC , representing Mann , said the defendant had become involved in taking drugs after completing his GCSEs and had spent time in The Priory trying to overcome his problem but had relapsed . Mann is undergoing physical and psychiatric treatment following the incident in December 2013 . He is seen being led away from the Hove Crown Court in handcuffs . The 21-year-old was sentenced to 16 months reduced to eight months in jail at Hove Crown Court ( above ) He told the court : 'His parents even sent him to work on a kibbutz in Israel but the problems would come when he came home and fell in with the same crowd . ' He told the court Mann had had hallucinations on occasions after taking drugs but 'had never had a reaction which caused him to be violent to another human being , particularly his mother who he loves very much and who he never had any conscious desire to hurt ' . Mr Etherington said Mann had relied on evidence of the attack because he had 'virtually no coherent memory of what happened ' . He continued : 'Looking back , in a mind that was very troubled at the time , he can only really rationalise it as being a suicide attempt by him in the grip of a delusion in which his mother somehow got involved . ' The court heard that although Mann had been 'extremely mentally unwell at the time of the offence due to a drug induced psychosis '' he had now recovered but remained `` fragile and vulnerable . '
Charles Mann stabbed his mother Emma 11 times in a frenzied attack . The 21-year-old then cut off his own penis in drug-induced fit of violence . Hove Crown Court heard how he had taken cocktail of drugs and alcohol . Launched the assault on mother at West Sussex home in December 2013 . Mann was sentenced to 16 months behind bars for Grievous Bodily Harm . He has been receiving psychiatric treatment since 'exceptional ' incident .