gardener takes one more picture on april 27th. dr. frederick mays, can you positively identify the body? is this a scar from the back of its neck? >> there is. >> let me describe it before it is seen by me. it's on the left side? and has appearance like a burn than that of a surgical operation? it was occasioned when i removed a fibroid tumor from his neck. >> it's exactly as you have described it. >> yes. that is he. >> that is john wilkes booth. >> gentleman, please, stand where you are. and perfectly still.