From the Lindbergh baby kidnapping trial to O.J. Simpson's double murder case, cameras in the courtrooms have long exposed the inner workings of some of America's most spectacular criminal cases. Now calls to bar cameras from Tyler Robinson 's trial in the killing of Charlie Kirk is reigniting the debate over whether they belong.

Defense witnesses in the prosecution of the man accused of killing Charlie Kirk said Friday that conjecture in the media over his guilt and depictions of him as a “monster” are making it impossible fo...