takes him two minutes to get there. they d done enough surveillance, and we were very familiar with his routine by this point. he came down the road. he was coming from work. the truck went down the road, and i slammed my car in drive. police cars pull in around him, stop him, tell him to get out. otis: we got him out of the car, we put him on the ground, and we handcuffed him. we stood him up. and in the very back of our line of our police cars was lieutenant landwehr in the back seat of a ford taurus. dennis rader was put in the back seat right next to kenny landwehr. and they look at each other. hello, mr. landwehr. hello, mr. rader. landwehr says, do you know why you re here? he says, i have a pretty good idea. otis: we had staged the interview with dennis rader far in advance of him being in that room. we had a camera and obviously audio and video recording going on. morton: literally, in 3 hours and 15 minutes,
law enforcement went about stalking dennis rader for a week. we had, like, a war room where we started investigating rader. we went back to the task force and sat around and began to discuss what our plan was going to be. singular: lieutenant landwehr says, what we need is dna. now, we have those three dna samples that we have been in storage for now 31 years the otero crime scene, the fox crime scene, and the wegerle crime scene. otis: we re talking about following him, seeing if he ll drop a fork in a restaurant or if he d smoke a cigarette and throw it down. by this time, we knew dennis rader had a daughter, and his daughter had attended college at kansas state university. one of the agents that was working with us knew that campus and said they had a women s clinic on campus