UNB :A 19-year-old college student has been stabbed to death allegedly by some muggers in Gazipur. The incident took place in the Bangladesh Rice Research Institute area of Sadar police station of the city on Saturday (May 4) around 4:45pm. The deceased Al Amin was a resident of the Chandana area of Gazipur metropolis. At one point, they tried to snatch the mobile phone from Al Amin. When Al Amin stopped them, one of them stabbed him on the left side of his chest, leaving him dead on the spot.