Oskaloosa Police and the Iowa Division of Criminal Investigation are investigating the death of a woman from Newton.  The investigation began after 28-year-old Alison Cooper of Newton was taken to Mahaska Health Saturday (6/18), where she was pronounced dead.  An autopsy will be held to determine the cause of Cooper’s death.  During their investigation, law enforcement arrested 35-year-old Brandon Lee Slobe of Oskaloosa for possession with intent to deliver marijuana, unlawful possession of prescription drugs and failure to affix a drug tax stamp.