A man allegedly hacked five members of his family to death in Jharkhand’s Koderma district on Wednesday, police said.¬†Gango Das axed his 50-year-old mother, 30-year-old pregnant wife, a son and two daughters to death at Masmohana village at around 2 am on Wednesday, Sub-divisional Police Officer (SDPO) of Koderma, Rajendra Prasad said.