[Royal Wulff]

How do you know he was shot at the location he was found dead?

[Ken H]

"A shot was fired inside the police car, and Brown was eventually shot about 35 feet away from the vehicle, Belmar said."

http://www.cnn.com/2014/08/11/us/missouri-ferguson-michael-brown-what-we-know/index.html

[Mariner]

"How do you know he was shot at the location he was found dead?"

Police chief said so.