The grieving girlfriend of model Harry Uzoka has addressed his death on social media after receiving "multiple death threats". Mr Uzoka, 25, was stabbed in the heart by rival George Koh and died on the pavement outside his home in Shepherd's Bush, west London, in January. Koh, from Camden, north London, claimed he had sex with Mr Uzoka's girlfriend, Ruby Campbell, and the two male models met for a confrontation. He was found guilty of Mr Uzoka's murder earlier this month. Ms Campbell, an Australian model who was in a relationship with Mr Uzoka at the time of his death, broke her silence after being subjected to online abuse and threats. She wrote: "I'm not one to post personal things on Instagram but this is necessary. Harry & I were happy." Mr Uzoka died because "a man had a jealous obsession" with him, she wrote. "He came to his house with his two friends, knives and intentions to kill. "Harry and I had just come back from overseas in the Caribbean for Christmas, we came back just before the new year with plans for our new year together," she continued. Ms Campbell said she was working in Sweden before returning to the devastating news in London about her boyfriend's death. Ms Campbell also revealed that they both thought Koh's claims about sleeping with her were "ridiculous". "I have NEVER met George and Harry was NEVER friends with him. The whole thing seemed creepy," she wrote.