A Sapporo doctor and his daughter were arrested Monday on suspicion of beheading a man and carrying the severed head out of a hotel in the northern Japan city earlier this month, local police said.Police are trying to determine a motive, as well as the relationship between Osamu Tamura, 59, his daughter Runa, 29, and the victim, identified as 62-year-old Hitoshi Ura, who was found naked and headless in a hotel room bathroom on July 2.The police believe Runa and Ura were acquainted but have declined to say whether the two suspects have pleaded guilty to the allegations.Ura and another indivi…READ FULL ARTICLE