LUCKNOW, Nov. 11 -- A 55-year-old history-sheeter was found dead with severe head injuries on the rooftop of his house in Manak Nagar on Tuesday morning, hours after his family heard sounds of bricks being thrown and a commotion upstairs. Police said Ramashankar alias Chhotu Kalia had been drinking with his friend Viresh Bahadur Singh alias Kinki and four or five others on the rooftop on Monday night. His son Ashu told police the gathering began between 10pm and 11pm. The family heard loud noises but assumed the men were creating a disturbance while drunk. At around 10am on Tuesday, the family found Ramashankar lying in a pool of blood and alerted Manak Nagar police. His son named Viresh Bahadur Singh and four or five unidentified people in his complaint. No arrests had been made till Tuesday evening. ADCP Jitendra Dubey said a forensic team collected blood samples and other evidence from the rooftop. htc...