The Tommy Darmody storyline was definitely under-developed. Although I'm sure a lot of folks assume that somehow Gillian was behind Nucky's killing,I'm not one of them.

Even though Tommy says his grandmother talked about Nucky a lot and he couldn't tell if it was love or hate,that in itself doesn't indicate involvement by anyone but Tommy.

The scenes where Gillian is trying to see young Tommy during the custody battle show Tommy as being almost afraid of her,and as we know,he was soon taken away by Richard's sister.

So the question for me is: How did Tommy find out for sure that Nucky killed his father.? Terrance Winter could have cleared that up,even if it came right before Nucky's killing.

By no means does this take away from one of the best shows ever made,but it would have been nice to know.