I can understand why you think this way, and it seems that most of us do as well,The guy doesn't owe a dime in child support, nor should he have to pay just to be in the child's life. The onus is on the 20 year old, entirely. He is the father, and she was just a criminal; she has zero claims on the guy, and he owes the mother nothing. It 's pretty cut and dried; there is no 'grey area' here.
however that is not the law in many states and not the law in the State this young man resides in....if you read the article, you can see he IS being held accountable for future child support AND child support in the rears....this could be due to him being at the age of consent when the child was conceived, 15 or 16 years old and NOT the 14yrs old that he was when the statutory rape occurred, I'm not certain?
once again, another journalist's article that does not answer the WHO, WHAT, WHERE, WHEN, WHY and HOW of the story....so we are all left speculating...