A 45-year-old traffic cop was killed after his motorcycle was hit by a Haryana Roadways bus near Bella Vista roundabout in Sector 5, Panchkula, on Friday. The deceased was identified as Arun Mehra of Raipur Rani, an ex-serviceman posted as a special police officer with the traffic wing of Panchkula police. As per the police, Arun was on the service …