To all the people voicing disappointment about this episode - who is to say these unanswered questions won't be addressed in up-coming episodes?

I think it stayed true to Patrick Jane's character - why would he want to give this creepy serial killer the opportunity to show off and explain how he did things? Those questions are not important to Jane, all he wanted to do was catch and kill him. Which he did!

The show stayed true to Jane's character and aims. If anything, the fact Jane wasn't interested in knowing only strengthens the core of the show.

His organisation remains active so for the rest of the season there are plenty of chances to find out more - a whole legacy to explore.

So don't be disappointed, see how this continues to play out, lots more to come, I am sure!