I am NOT defending this guy.....however.

The story is bizarre.  The parents allege the girl was raped.  Yet she continued a relationship with him for months afterwards.  

There are seemingly no other allegations against him..and even your citation states "Salisbury police investigated the matter in 2016 with no criminal charges filed."  

Now there is a lawsuit looking for money from people  who were not part of the case and did not know about the allegations.   How can the defendants in this case be negligent if they didn't know, and there were no further incidents after the girl went to college?  He apparently had no contact with her - so what standing do the parents have to even bring such a suit?  

Something sounds really off in this whole thing....