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