A teenage girl will visit her mother's grave this morning taking good news - the man who murdered her has been brought to justice. Dim sum worker Zeng Liang-xin, 31, was convicted last night of hacking off Wong Miu-kuen's head and carving up her body with a chopper. 'I feel vindicated,' said daughter Tsui Po-yin, 16, as she left the High Court with her brother. 'I will visit my mother's burial place tomorrow morning to tell her the result.' Zeng, who was found guilty of murder, had claimed he killed Wong, his boss, accidentally after she offered him money in exchange for sex. On October 30 last year, Zeng and Wong, 37, went back to his quarters over the Tai Po restaurant. Zeng claims Wong's head struck a bunk bed bar when he shoved her from his lap after she made advances to him. When he realised she was dead, he hacked her head and torso apart with a chopper, put the remains in nylon bags and threw them in a river. Mrs Justice Verina Bokhary adjourned sentencing until this morning.