Do you have some books suggestions?

You'll love the John Douglas books. Even though it's technically out of order...I recommend reading "Anatomy of Motive" first. I've read it over and over, and I'm still blown away. John Douglas is a real agent out of Quantico. He shares real stories, and delves into the minds of serial killers. Truly an addicting read, and you'll definitely learn. This isn't political at all...this is 100% true, and some of the cases will blow you away.