The family of Nikki Yadav -- the 23-year-old strangled by a cable by her boyfriend in Delhi -- claim they did not know of her relationship with the alleged killer. Her father has demanded the death penalty for Sahil Gehlot. "They talk of educating girls. Beti padhao. But where is the safety? They cannot provide safety to women. On top of it, the police are claiming that she was in a live-in relationship for four years. All false rumours," said her uncle Suresh Yadav.