A jealous husband who fatally stabbed his ex-wife in the heart after discovering she had been using dating websites has been found guilty of murder. Lorna McCarthy feared for her life in the hours leading up to her death at the hands of Barry McCarthy, the man she had spent 25 years with before their separation four months earlier. Mrs McCarthy, 50, sent a series of messages to friends and family on September 27, including one to her daughter saying she didn't know 'what he is capable of these days'. She urged her daughter to call the police if she did not hear from her the next day - but it was never received. Lorna McCarthy (left) was stabbed through the heart by her husband Barry McCarthy (right) last September . The couple, who were still sharing a home in Gorleston-on-Sea, Norfolk, but sleeping in separate bedrooms, had had an argument. McCarthy, 51, had previously found out his wife was using dating websites. But she had agreed to take her profile down after he confronted her, Norfolk Police said. But in the early hours of September 28, Mrs McCarthy revealed she did not want to try to save the relationship, Norwich Crown Court heard. A little later, he entered her bedroom and stabbed her 13 times, according to the Eastern Daily Press. A post-mortem examination later revealed she had died from a stab wound to the heart. McCarthy then handed himself into police, telling them he had killed his wife, the court heard. When officers went to their home, they found Mrs McCarthy - who her daughter described to the BBC as a 'very colourful' and 'well-known' - in the back bedroom. McCarthy will be sentenced on May 1, after being found guilty of murder at Norwich Crown Court . McCarthy pleaded not guilty to murder on the grounds of diminished responsibility. But a jury today found him guilty of murder following a eight-day trial. Detective Chief Inspector Paul Durham said: 'This was a horrific and brutal attack on a woman in her own home by a man she had spent 25 years of her life with. 'My thoughts go out to Lorna's family and friends, and I hope today's verdict will help bring them some comfort as they still try to come to terms with her tragic death.' McCarthy is due to be sentenced on May 1.
Lorna McCarthy was fatally stabbed through the heart  last September .
Ex-husband Barry McCarthy attacked her in the Norfolk home they shared .
Mrs McCarthy had previously sent texts saying she feared for her life .
McCarthy, 51, was found guilty of murder at Norwich Crown Court today .