also, you know, very important that our efforts be done properly, scientifically, taking into consideration all the sensitivities involved. >> so brad, obviously there's enough doubt out there that you dedicated an entire episode to john wilkes booth. the idea is to test edwin booth, his dna, compare it to the dna of one of the vertebrae that are believed to belong to john wilkes booth to see if there's a relation. if not, then what? what are some of the theories out there? >> well, the theories and the reason this story starts is as you heard because some family members have heard these stories passed down, and one of the stories that started was that john wilkes booth when he escaped didn't die that night, took on the alias john wilkes booth, a guy smart enough to evade capture, not the name that