"I want a CBI inquiry into the case as I don't believe in the investigation done by Delhi police. They are the one in question into the case, how can they probe it," said Karan's mother Manju Pandey after Karan was cremated at Malviya Nagar crematorium in south Delhi.
She also demanded the arrest of inspector Rajneesh Parmar who opened fire on her son.
"He was questioned into the case. He may face an arrest soon," said a senior police officer.
Stunt biking by errant youth led to a tragic incident on Sunday when Parmar opened fire, which hit Karan on his back, who was riding pillion on Punit's motorcycle.
Both of them were rushed to RML hospital were Karan was declared brought dead.