I think Papa and the missus had a long talk about Joran and what probably happened, perhaps outside where they couldn't be overheard, and the missus is under no illusions now that J is innocent. There might come a time when she has to choose between supporting Papa or J. If Papa needs to plea bargain to save his own hide...if arrested again.
All they need do, is give these boys a polygraph. That's all. And IF Paulus knows his son is soooo innocent, why would he hesitate? Of course, they might need permission from the Muhderland..LOL.
sw