cop opened fire and killed his wife, mother-in-law and father-in law besides leaving two others injured at Phallian Mandal village of Jammu on Tuesday.
As per the officials, the cop identified as Ravinder Kumar shot dead his wife, mother-in-law and father-in-law in Jammu on Tuesday night.
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Police had taken the bodies into custody and sent them for post-mortem examination at the hospital.
Further investigations were in progress, said a police official.