I said that when Booth heard Jackson was killed, he was told that Jackson was shot in the back. That is what Booth believed. I don't believe it, you don't believe it, Booth believed it.
Asia Booth told about John smuggling quinine into the South. Any quick search will give you information about it. You might check on the internet about Booth's service in the Confederate Secret Service. The information is out there, except for the when and where.
This explanation tells who, when, why, and where Booth became involved in the Secret Service. The pieces of information are out there, and I put the pieces together. You may judge how well I did.