Why was Booth admitted into the presidential box?

[RJNorton]

Hi Mercine. I wonder if that hole in the door to Box 7 is the reason some books have Booth entering the box through that door. Nowadays I think most historians feel Booth entered through the open door to Box 8, not the door with the peephole. Mike Kauffman makes a very sensible argument (IMO) for the Box 8 entry in In the Footsteps of an Assassin.