On camera, a girl is stabbed 22 times by a man and struck with a stone slab as people pass them by, staring in alarm but doing nothing. The girl, 16, goes still but the frenzied attack doesn't stop, shows extremely disturbing footage captured on a security camera in north Delhi's Rohini on Sunday. The teen was killed by her alleged boyfriend, Sahil, on a bustling street crowded with people, yet no one came to her rescue, as captured in the CCTV footage. 20-year-old Sahil, an AC technician, was arrested from Uttar Pradesh's Bulandshahr today.