please help me welcome back to which wichita tony horwitz.applause] >> thanks for that kind introduction and the historical museum. it's great to be back in wichita. this is my second consecutive book with a strong kansas connection. i don't know what that means, but i seem to be drawn to your state or of leased darker chapters of your history. i'm going to try to be reasonably brief tonight and leave lots of time for questions because this is a topic that tends to arouse a strong feeling and i like to hear those and have some discretion, so please don't be shy when i'm done. maybe if we can dim the lights a little bit for dhaka pictures. is any one near -- great to. i brought some pictures for your entertainment. i have to say first i had a lot of fun writing midnight rising, and one reason for that is i got to spend a lot of time in harper's ferry, which is really my kind of town. it's a very picturesque place where strange things still happen. my first research trip i was on my way to the archives and a park ranger told me there was a john