9. Drew Sharp
This one may not have the blood and guts that comes with a lot of the other brutal kills listed here, but what it does have is the sheer shock factor of shooting an innocent child. Drew Sharp was just an innocent kid out collecting tarantellas for his collection, but tragically ended up in the wrong place at the wrong time. Drew's death takes place in season five of the show, in the episode "Dead Freight", which sees our heroes Jesse, Walt and Mike and the not-so-heroic Todd rob a train of its methylamine for their batch. Though the train heist runs almost flawlessly, with the gang successfully stealing the meth, there's a hitch in the plan in the form of poor old Drew. Just as Walt, Jesse and Todd finish celebrating from the success of their mission, they turn round to see Drew, a witness to their crime. Without hesitation, Todd pulls a gun, and gives the show one of its most tragic deaths.