Kill the boy? Which boy? There are lots of boys that could be killed, so let's run down the noteworthy possibilities:
Robin Arryn: He should be killed, definitely.
King Tommen Baratheon: Another possibility, as his death would throw the kingdom into chaos... AGAIN.
Olly, Jon's squirt for a helping hand: Wouldn't it be something if Ser Alliser decided a little payback for Janos' beheading was in order?
Bran Stark: He's not even in this season, so probably not. Ditto for Rickon.
And depending on your definition of boy, we could add Ramsay Bolton, Jon Snow, Lancel Lannister, Trystane Martell (Myrcella's soon-to-be husband). Or, you know, it could be one of those metaphorical things where the boy is simply a stand-in for the innocence of pre-puberty adolescence, and someone should just grow a pair. Hopefully it is someone real and not just an abstract concept, because we all watch this show for its death count, right?
I'm working on my review and carefully plotting out some .GIFs, but that doesn't mean you can't start talking about the show without me. I will not be offended. So go ahead and discuss in the comments section.