The woman lied, admits to lieing about who the father was.
The man never received the subpoena because he was incarcerated on the day it was signed, which means the signature was forged by the process server.
The man didn't know anything about the child, which has been acknowledged in court.
He is still ordered to pay.
I think the judge that ordered this, after acknowledging the many crimes against this man associated with this case, should be removed from the bench.
You have to be able to trust the judge will use at least a little common sense, which is lacking in this case.