Police arrested three 20-year-olds and a teenage girl Monday on suspicion of setting fire to a house in Chiba Prefecture, east of Tokyo, and killing the person living there.The four are friends and had been spotted near the house in the city of Inzai when the fire broke out shortly after 4 p.m. Saturday, the police said.Yoshiko Ebihara, 55, lived alone in the house, which was completely gutted by the fire. The police will carry out an autopsy on the body found there to confirm its identity.The three 20-year-old suspects are Junya Nakauchi from Tokyo's Sumida Ward, Taiga Kanazaki from Inzai …READ FULL ARTICLE