Prosecuting Attorneys

Prosecuting Attorneys

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Ryan Ziegler
Prosecuting Attorney 

Ryan began working as Assistant Prosecutor in 2017. He grew up in Macomb County and went to Eastern Michigan University, earning a bachelor's of science in Philosophy and Political Science.  He moved to Indiana for three years and received a law degree from the Maurer School of Law at Indiana University.  After graduating, he moved back to Michigan and became the law clerk for the 46th Circuit Court, doing legal research for Judge Janet Allen and Judge George Mertz. 

Ryan also coached the Gaylord St. Mary's High School Mock Trial team from 2014 to 2017, taking them to three consecutive state championships. 


Eric O'Hearn
Chief Assistant Prosecuting Attorney

A northern Michigan native, Eric passed the bar in early 2019 while working for a private attorney in Traverse City. Prior to that, he played semi-professional hockey. He started working for the Prosecutor's Office in December of 2020.