Question: What county do both Edward John Primeau and Rochester Hills, Michigan have in common?

Related documents: [0]  [DOC] Edward John Primeau is an American audio and video forensics expert based in Rochester Hills, Michigan. He became known for working on the audio analysis of cases such as Shooting of Trayvon Martin, Air Force One radio transmissions after the assassination of John F. Kennedy, and Malaysia Airlines Flight 370. [END] 
[1]  [DOC] Rochester Hills is a city in northeast Oakland County of the U.S. state of Michigan, in the northern outskirts of Metropolitan Detroit area. As of the 2010 census, the city had a total population of 70,995. [END]  
Answer: Oakland County
Oakland County