The story of this particular child is here.
How come the arm isn't attached? Read Dr. Leroy Carhart's testimony, in which he was questioned about how he performs his extraction abortions. Carhart indicates that he tried to grab the baby and get it positioned to where he can suck out the brain without taking the baby apart first. But sometimes, he indicates, the baby sticks a limb out through the cervix, and it's just easer to pull that part off and go from there:
Carhart: My normal course would be to dismember that extremity and then go back and try to take the fetus out either foot or skull first, whatever end I can get to first.
Question: How do you go about dismembering that extremity?
Carhart: Just traction and rotation, grasping the portion that you can get a hold of which would be usually somewhere up the shaft of the exposed portion of the fetus, pulling down on it through the os, using the internal os as your counter-traction and rotating to dismember the shoulder or the hip or whatever it would be. Sometimes you will get one leg and you can’t get the other leg out.
Question: In that situation, are you, when you pull on the arm and remove it, is the fetus still alive?
Question: Do you consider an arm, for example, to be a substantial portion of the fetus?
Carhart: In the way I read it, I think if I lost my arm, that would be a substantial loss to me. I think I would have to interpret it that way.
Question: And then what happens next after you remove the arm? You then try to remove the rest of the fetus?
Carhart: Then I would go back and attempt to either bring the feet down or bring the skull down, or even sometimes you bring the other arm down and remove that also and then get the feet down.
Question: At what point is the fetus...does the fetus die during that process?
Carhart: I don’t really know. I know that the fetus is alive during the process most of the time because I can see fetal heartbeat on the ultrasound.
This is how a normal second trimester abortion is done. D&E.