New Delhi, Aug. 30 -- Weeks after 35-year-old singer Jatin Khanna was killed in a hit-and-run accident on August 2, near the Mukundpur flyover in northwest Delhi, the Delhi Police on Sunday said they had changed the investigating officer (IO) after the family raised concerns about the progress of the probe and protested multiple times outside the Jahangirpuri police station.

On August 2, Khanna, a local singer, was returning home to Uttam Nagar on his bike when an unknown vehicle rammed into his bike. The accused managed to flee, police said.

According to police, they reached the spot within seven to eight minutes and rushed Khanna to a hospital, where he was declared dead.

Over the next weeks, Khanna's family sought justice and a fair...