In the criminal profiler, none of the cases will get to 100%. Do you have reports on all of the evidence and are you sure, you had everything analyzed? You should check with the crime lab, records & research and the surveillance unit to make sure everything is checked.
When you're interrogating Frank, is the inner red circle filling up and you're unable to ask more questions? If that's happening, you're using the wrong mode of questioning and will have to leave and come back later to finish the questioning.