Question

Suppose Briscoe Cole is found not guilty of murder in a fair jury trial. Later, evidence comes to light

Answer 1

It is under the "double jeopardy" principle of the Fifth Amendment that Briscoe can't be tried again for that same crime, since this puts faith in the American judicial system to be fair and accurate. 

Answer 2

I believe the answer is: d. Double jeopardy

In double jeopardy, a person cannot be tried again in court for a same criminal charge if they've been convicted for the crime in the past. An exception for this rule might occur if the defendants conducted that specific crime repeatedly in different states