An Ottumwa man has been sentenced to 15 years in prison for his part in the death of a Fairfield man last summer.  Prosecutors say 59-year-old William Brown took a syringe filled with meth, Alka Seltzer and liquid and injected it into Dustin Canaday on July 31 of last year.  Canaday then became violently ill and collapsed on the bathroom floor.  EMTs were not able to save his life.  Brown was sentenced to ten years for dealing meth and five years for manslaughter—with those sentences running consecutively.