. >> in most of my closing arguments, i used to quote oliver wendell holmes who said, memories may fade and witnesses dissemble, but circumstances never lie. and circumstances of this case are forensic circumstances and they did not lie. >>> a drive-by shooting on an alaskan highway. and the bomb sent through the mail. two apparently random acts of senseless violence, until forensic science discovered an important link. on an october night in 1990, rob chamberlain and his friend were driving along glenn highway in anchorage, alaska, headed to a local restaurant. as he approached the exit ramp, chamberlain heard a loud crack. he looked back and saw a hole in his rear window. then he saw his friend, 20-year-old jeffrey cain, slumped in his seat and covered in blood. >> the bullet entered the back of his head, exited out the front of his head. death was instantaneous. >> cain's parents were called to the scene. >> i couldn't understand why jeff had to be the one who was shot. maybe i'm just like there is other people, why not shoot the bad people? >> jeff was a computer programmer with no

. >> in most of my closing arguments, i used to quote oliver wendell holmes who said, memories may fademble, but circumstances never lie. and circumstances of this case are forensic circumstances and they did not lie. >>> a drive-by shooting on an alaskan highway. and the bomb sent through the mail. two apparently random acts of senseless violence, until forensic science discovered an important link. on an october night in 1990, rob chamberlain and his friend were driving along glenn highway in anchorage, alaska, headed to a local restaurant.

claimed at the time that this was his free speech, but chief justice of the supreme court, oliver wendell holmesanimous court decided this in 1919. justice holmes said falsely shouting fire is not protected by free speech. and this was a statement that was at variance with what everything that volkswagen had said publicly and privately, which is the vote would have no bearing on where their product went. and he put it in the guise of an anonymous comment. was it a night shift security guard or the ceo of volkswagen who said this? it was inappropriate and irresponsible. >> he never identified who told him, who gave him the assurance that if the vote went a certain way, that there would be extended manufacturing at that plant. verge man nair row, seems line the senator from tennessee is foggy on how this unfolded. how do you see it? >> look, it was underhappened. it was despicable. goal so far, ed, as to say it was un-american. because it is a basic tenant in american law now and american principle that you -- the worker gets to choose. it wasn't always that wake as the professor said. hard-fought