I definitely agree that there was likely a lack of parental bonding with AJ. I went down a facebook rabbit hole last night. God bless JC's family, it appears they tried to help and stay involved. I can only imagine how deeply painful this is for them all. There are pictures at the hospital after PF's birth (no pictures on anyone's page of AJ's birth). JC looks so healthy, polar opposite of how she looks today. That would have been the period she was not only pregnant, but trying to regain custody of AJ. Seeing those photo's also indicate IMO, in this current pregnancy she has been using and has not been clean. Dramatic difference in appearance.
Something else also stuck me. Joann had AB at age 17. There were no other children until after he was removed from her custody at age 12. AJ was born in October or November 2013 and removed at birth. She got pregnant with PF in March 2014, he was born in December. Come forward to current, she and Freund are not together anymore in a relationship sense, despite still living in the same house. Lot's of financial issues, may not have a place to live. Various interactions with LE & DCFS. Perhaps she senses she is going to lose AJ & PF, and the cycle repeats itself. She is pregnant again but not by Freund. Does she try to replace what she has lost or perceives to lose? I guess I am over-reaching, in my nature to search for the "why".