Re: Agreed. I think he's just saying "Haha, I killed your children." I don't think he's really trying to get a reaction out of Strucker [...]
On the contrary - check out Norman's evil grin of glee as he tells Strucker "I killed your kids," and his disappointed frown after Strucker basically tells him, "Thank you for doing so." Norman clearly wanted to get under Strucker's skin, and the fact that he thought that line would do it shows how profoundly he misunderstands Strucker