An Oskaloosa man facing charges in a drug overdose death last year has had those charges dismissed in Mahaska County.  But 28-year-old Cody Vancenbrock is now looking at federal charges in the same case. You’ll remember Vancenbrock is accused of injecting meth into 24-year-old Ashley Shafer of Oskaloosa, which led to her death, and then dumping her body into the Skunk River.  Last week, Vancenbrock was federally indicted on one count of drug distribution resulting in serious injury or death.