A 40-year-old barber in Noida slit his wife's throat as she "refused to engage in sex with him" because his mouth cancer had left a hole in his cheek, police said. Since the crime on July 11, Ajay, the murderer, had been absconding; he was finally nabbed yesterday. The couple, who was married for 17 years, had a 16-year-old daughter and an eight-year-old son.