LUCKNOW, Feb. 14 -- A day after a speeding car driven by a Class 12 student rammed into a bike, an autorickshaw and pedestrians in Banthra area, killing a 6-year-old boy and injuring four others, on Kanpur Road on Thursday evening, police on Friday arrested the accused who turned out to be 21 years old. An FIR was registered based on a complaint given by the mother of the deceased child, Deekshant Patel, 6. Officials said that the accused, identified as Gaurav Singh, was not minor, as presumed earlier, and documents confirmed his age. Police said Gaurav was returning after attending a farewell party with a female friend.P3...