Could they possibly be investigating Skippy and brother Tony?
https://www.dailymail.co.uk/news/article-6988081/Kate-Gerry-McCann-vow-carry-looking-daughter-Madeleine-long-takes.html
This article from 2017 - when ALL the AGs offered resignations (usual practice with any new POTUS). HUBER was re-appointed by POTUS Trump and he is working now on many investigations.