Mark Olshaker talks about his latest book that he has co-authored with the father of FBI profiling, John Douglas. John’s story is the basis of the hit Netflix series Mindhunter. Click Play Button OR Listen On Your Fave App By Clicking Its NameAPPLE PODCASTS – SPOTIFY – GOOGLE PODCASTS – iHEARTRADIO – STITCHER You can find the newest book at Amazon.com: The Killer…