and find the killer when, in april, another brutal killing. ♪ btk: i had many of what i call them projects. they were different people in the town that i followed, watched. kathryn bright was one of the next targets. ♪ ♪ kathryn lived in a house just off wichita state campus, a rental home. she lived with her sister, but she had gone to lunch with her brother, kevin. ♪ singular: killer breaks in. he's lying in wait, and he's thinking he will be able to subdue her