VARANASI, Sept. 23 -- Three persons, including a woman and two priests, were killed after the woman's husband, Arvind Singh, allegedly opened fire following an argument during a puja at their house in Shambhupur village under the Aharoula police station area of Azamgarh district on Tuesday evening, police said. A police officer said Singh, who was allegedly heavily drunk at the time, had locked himself inside a room of the house with his two children. Senior police officers, including DIG Sunil Kumar, SSP Anil Kumar and SP (rural) Chirag Jain, along with a heavy police force, reached the spot and were trying to rescue the children, the officer said. According to police, a puja was underway at the house, where Singh's wife Babita and four priests were present. Singh returned home from the market around 6pm and questioned the priests about the ritual. An argument broke out after he allegedly demanded their Aadhaar cards. Police said Singh allegedly took out a licensed pistol kept in the house and opened fire, killing Babita and two priests - Mahendra Pathak of Patkhauli village and Akhilesh Mishra of Chhitauna Bhatauli village. A shot was also reportedly fired from a rifle. Police said they were collecting evidence related to the weapons and firing. They added that the exact sequence of events and motive would be established after the investigation and post-mortem examinations....