complex murder case by far in world history. nothing even remotely comes close. >> the warren report said that lee harvey oswald shot the president from his window in the texas school book depository. three years after kennedy's assassination, the major question is still a simple one. did the warren commission, with all that time and all these resources, get its answers right? tonight, we'll go over those arguments one by one, area by area. as the assassination was taking place, a dallas businessman called abraham zapruder stood behind that low concrete wall looking down at elm street. >> as the president was coming down from houston street and making his turn, it was about halfway down there, i heard a shot. and i heard another shot or two. i couldn't say whether it was one or two. and i saw his head practically open up, all blood and everything. >> where did the shots come