It can take several hours to a day for a chick to zip and come out of the egg. If you feel like it is taking a bit too long, they may be shrink-wrapped and need help out of their egg.
Which ones hatched? Can you list them? I am excited! But I am also so sorry for your loss. Are you sure the chick is dead and not shrink-wrapped and still alive?
Do you mean that the chick pipped and made a hole in the eggshell? It usually takes several hours for the chick to zip and come out after making the pip. Wait and see before doing anything.
Kira is not #3 anymore because #3 got thrown out for no development, along with #12. The OP replaced both eggs with new eggs (or is planning on replacing them, I'm not sure).