Chain snatching gone viral

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I came to know that two guys involved in chain snatching get chatched by police because of the help of security camera. Last week this incident happened.Two guys involved in this ,one riding two wheeler another guy sitting behind .In an empty a women is going, suddenly a guy in backside makes a chain snatch and the women is sliding over the road.That women got severe injury. Soon after the video from security camera goes viral and criminals for arrested. I don't know why these people doing filthy things? Won't they have heart? Each and every should to grown strictly from childhood onwards. Their parents made mistake in my point of view,without teaching them good and bad.