Amritsar, July 5 -- A retired deputy superintendent of police of the Central Reserve Police Force (CRPF) on Friday opened fire at his family, killing his son and injuring his ex-wife and daughter-in-law, police said. The incident took place near a police station on the busy Majitha Road, where a police team deployed at a checkpoint overpowered the accused, Tarsem Singh, 62, and snatched his licensed gun. Assistant commissioner of police Rishab Bhola said the former officer had married twice and had a property dispute with his first wife. After an altercation, Tarsem Singh fired at his first wife, son and daughter-in-law. The injured were rushed to the nearby Guru Nanak Dev Hospital, where his 40-year-old son succumbed to bullet injuries. The condition of his first wife is stated to be critical, while the daughter-in-law is stable. A murder case under relevant sections of the Bharatiya Nyaya Sanhita has been registered against the accused....