Maybe this guy is another Dubaku. I know, that's racist. Jack would rather die a painful death than have to listen to Kim call him "Daddy" again.
What a hackneyed device, to have the bad guy escape the moment the afent looks slightly away. Just ONCE the good cop needs to incapacitate the bad guy first... BEFORE checking out the bag.
Well it's been about 8 years in show time, she could have grown up a bit... not uncommon at that age.