Gorakhpur, June 23 -- A 16-year-old boy was detained on Monday for allegedly hacking his elder brother, sister-in-law and their three-year-old son to death at their residence in Uttar Pradesh's Gorakhpur district, police said. The incident took place in Balua village at around 3am. The three victims were sleeping in the same room when the teenager allegedly attacked them. Preliminary probe suggests a dispute related to a family-run shop may have triggered the killings, they added. P6...