VP Beast Butler?

[L Verge]

Agreed, Rick, and consider his age. He literally just turned 21 at the time of the assassination. There are conflicting dates as to the day of his birth in 1844. For years, it was given as April 13; however, the records of the family physician, Dr. John Bayne, mention a visit to attend to Mrs. Surratt on April 14. We don't know if that was a post-delivery check-up or not, but either way, the young man was a YOUNG man in 1865. And really only 20 in December of 1864, when Dr. Mudd and Booth sought his help.

Of course, today, the FBI and the CIA still go to college campuses to do their recruiting. There's a vibe in the young that makes them daring - and their controllers need to add the experience and the knowledge.