The Economic Times

Russia's Mikhail Kalashnikov invented the deadly AK-47 rifle, but a 2013 letter to church just before his death revealed his deepest regret: 'My spiritual pain is unbearable'

The rifle he developed in 1947 was primarily intended to safeguard Russia's boundaries. As he aged, Kalashnikov shared that he became more consumed by this question, always contemplating why God had made humans with harmful inclinations like jealousy, greed, and aggression.