A 17-year-old boy allegedly rammed his Mercedes Benz into a scooter, killing its rider in Keralam’s Kochi in the wee hours of Sunday, police said, even as state home minister Ramesh Chennithala promised the victim’s family stern action in the case. The crash took place around 2:20 am on Sunday near the Ford showroom at Maraparambu on Container Road in Cheranalloor. The victim, Jayabalakrishnan, who lived in the Manjaly area, was returning.