GAYAJI, Sept. 12 -- Gaya police arrested a son, daughter-in-law and other family members in connection with the brutal murder of a 70-year-old man at Kuinwar village under the Imamganj police station area. Officials said that the murder occurred due to suspicions that the deceased, Ram Das Rajak, practiced black magic and harmed his own family. Deceased's wife Phool Kumari alleged that her younger son, Rajkumar Rajak, accused her husband of indulging in black magic and being responsible for the accident and grievous injury to his wife. The son killed the man by strangulating him with an iron rod and took the body towards the nearby forests and burnt it with the help of his associates to destroy evidence, Kumari alleged....