A convicted rapist who murdered a young barmaid in a sadistic and sexually motivated attack after she told him she did not want a relationship prowled the streets with a knife before confessing his crime.Michael Doherty, 38, left Courtney Angus, 21, with 76 injuries before taking indecent images of her and 'sexually humiliating her in every way he could imagine' at his home in Batley, West Yorkshire, in July last year.He then wandered the nearby streets waving a large knife and entered an Asda supermarket, threatening to stab staff.As he was being arrested, he told officers: 'I've got a dead body in my house'.Doherty, who changed his name from Michael Moore in 2018, has a history of violence towards women who reject him, with convictions for raping a stranger on the way home from a nightclub and torching a former partner's car.He was today sentenced to life in prison with a minimum term of 33 years. Leeds Crown Court heard Ms Angus had moved into his house days before her death in July last year, but was not his partner and was clear that she did not want a relationship.Prosecutor Craig Hassall said Doherty made it clear he liked her, and texted her threatening to kill himself on the day of the murder. Michael Doherty, 38, murdered 21-year-old Courtney Angus before taking to the streets of Dewsbury, West Yorkshire, while brandishing a knife Courtney Angus's family released an image of the 21-year-old following her death and described her as a 'lover of music, socialising and having fun'He told her: 'I'm fed up of this life, fed up of being nice, and to be honest it's not just you, I can't take much more of life.'Doherty added: 'I do find you very attractive, but that doesn't mean I want a relationship. I do wish I wouldn't have told you how I felt.' Ms Angus responded: 'It's not my fault Mikey, I don't want a relationship, I told you this from the start, I haven't led you on. I've been a good friend to you.'Mr Hassall said that during the evening of July 25, the two were at Doherty's house in Norfolk Street in Batley, West Yorkshire.He told the court the evidence was that 'shortly before her death, Courtney had rejected the offender's advances towards some sort of intimate relationship between the two of them'.The court heard that Doherty sexually attacked Ms Angus during the drug-fuelled assault, cut off parts of her body and 'callously' left them on his mantelpiece.A pathologist found that the cause of her death was pressure on the neck, from strangling, coupled with head injuries from blunt force trauma.The court heard that after taking indecent images of Courtney on his phone, Doherty sent a message to a friend saying: 'I've killed someone, ring me please.'The next morning Doherty went on a stealing spree in Batley and nearby Dewsbury, taking three baguettes from Greggs and dropping his phone in a tussle with staff after trying to shoplift from Aldi.At 9.15pm he was followed out of an Asda store in Dewsbury by staff when he left without paying, and produced a large knife before saying: 'I'll stab you mate, I'll stab you.' Michael Doherty, also known as Michael Moore, pleaded guilty to murder, theft and three counts of threatening a person with a blade When police found him in Dewsbury town centre he was brandishing the weapon and told officers he had committed a murder Police traced Doherty after being called to reports of a man who had robbed a local Asda and threatened staff with a knifeWhen police found him in Dewsbury town centre he was brandishing the weapon and threatened to harm them, before attempting to enter a nearby pub.He was subdued by officers with Tasers and told police: 'Get armed response and SIO to me now because I've got murder, I've got a dead body in my house.'Police then rushed to Doherty's address, where they found Ms Angus deceased. At sentencing, a victim impact statement from Ms Angus's mother, Diane Angus, was read to the court which said: 'Losing my daughter has left a space in my heart that nothing can fill.'I carry her with me in every thought, every breath, every moment. I wish I could hold her again.'I grieve not only for her but for the life that was taken from us.'A statement from Chloe Angus on behalf of all her sisters said that seeing Courtney in a mortuary 'will never leave our minds'.It read: 'How could someone hurt a young, vulnerable woman in the way that he did?'Courtney had her whole life ahead of her, she had just turned 21. She was loved deeply by everyone around her. Courtney was the life and soul of every room she walked into.'The court heard Doherty had 23 previous convictions, including one for raping a woman he did not know in 2013 while pretending to walk her home from a nightclub. He was jailed for five years, and entered a brief relationship with another woman after he was released, but torched her car when she ended things.In January this year Doherty pleaded guilty to murdering Ms Angus, theft and three counts of threatening a person with a blade.Richard Wright KC, defending, said Doherty had been in a 'highly intoxicated state clashing with a highly complicated mental health picture at the time'.He said the defendant wanted to be brought to the court so Ms Angus's family could see him sentenced, adding: 'There is at least the beginning of some insight into what he did and the impact of what he did on others.'Jailing Doherty for life with a minimum term of 33 years, Judge Guy Kearl, the Recorder of Leeds, said: 'You have, by your actions, changed the lives of all of those who knew (Courtney Angus) forever, in particular, her family.'But worse than that, you took her life in a senseless rage, as I find, after she had rejected you.'This was not the first time that you had reacted violently towards females who resisted you.'The judge said: 'Although it is plain you wanted a relationship with her, she informed you in clear language that she did not have the same wish or desire.'As she pointed out to you from the start, she did not want a relationship, she did not lead you on, she was a good friend to you but no more. She could not have been clearer.'Judge Kearl said: 'What you had done after her rejection of you was to sexually humiliate her in every way you could imagine.'The images (on the phone) show the extent of your depravity.'He added: 'Having been rejected by her you decided to overpower her, both physically and sexually, in order to satisfy yourself, and you took pleasure in doing so.'Senior Investigating Officer Dan Bates, of the Homicide and Major Enquiry Team, said: 'Doherty carried out his violent attack on Courtney after she told him she was not interested in having a relationship with him.'He further showed his willingness to use violence by taking a knife into Dewsbury town centre, where he threatened a shop worker and the police officers who attended the robbery report.'These actions clearly demonstrate that he is a very dangerous man, and I hope Courtney's friends and family can take some comfort in the sentence passed down today.'