While North Texas was reeling from a shooting in Allen, some concerned neighbors and vigilant police may have prevented another tragedy south of Fort Worth The story leaves us both grateful and concerned. Noah Robert Calderon, 22, of Burleson was arrested and charged with possessing a homemade bomb after neighbors reported that he set off an explosive device in a residential neighborhood. When police executed a search warrant at his home last month, they found bomb-making supplies, including a glass jar marked “frag” that was filled with metal BBs and lead, a white plastic container with 659.2 grams of explosive...