CHENNAI: A lovesick man drank poison at the house of a woman after she and her parents turned down his marriage proposal in Chengalpet on Friday. Even as the shocked family was watching him emptying the poison he had brought along, Karthik, 30, attempted to stab the woman.In the melee that followed, an aunt of the woman suffered a stab injury on her neck in her bid to foil his assault. Karthik died...