Identification of Booth's body

[Warren]

I’m about as sharp as a rubber ball, and here’s what I don’ t understand. If Stanton is so evil, so evil he would conspire to kill Lincoln, Seward, Johnson, Grant, et al, why would he let such a loose cannon such as Booth, who supposedly, in the missing 680 plus pages of an out of date memorandum/diary could bring it all down - why would he let him live? If I orchestrated that plot, the first person I would kill after the deed is Booth.