This Todd guy is likely my least favorite character on the show, lower than Flynn.
The way the kid just stopped, waved, and Todd was the first to wave back. Up to that point I thought Todd was the nicest, most innocent one of the group and as soon as I saw him move his hands towards his back my jaw dropped. Even Walt looked like he was going to say Hi and talk to the kid about working for the railway or some such. That was hands down the saddest killing on TV I've ever seen, that kid was so innocent and didn't seem like a blabbermouth talker type liability.