11. Todd's Heartless Murder
In the season 5 episode Dead Freight, the opening teaser features a young boy harmlessly playing in the desert, before curiously riding off to see the passing of an oncoming freight train. He isn't seen again until the episode's end. Unfortunately for this young lad, the train he decides to view just happens to be the one Walter, Jesse and Todd target to rob a huge supply of methylamine for their cooking. Successful in their endeavor, they are ultimately surprised to see the little boy whom has witnessed their theft. Innocent and oblivious, he waves at them... only to be shot dead by Todd, who removes the witness. It's horrifying and cruel and ultimately deserving of Jesse's helpless shout of pleading. It's Breaking Bad at its cut-throat worst. http://www.youtube.com/watch?v=_uTuSv3hgGA