[Pannic]

Proprietor - 10
Czolgosz - 10
Hinckley - 10
Guiteau - 10
Zangara - 10
Byck - 10
Fromme - 10
Moore - 10
Booth - 10
The Balladeer/Lee Harvey Oswald - 10

I didn't include Goldman, the Presidents, or bystanders, because... well... because. And The Balladeer and Lee Harvey Oswald are combined, because that seems to be very popular and a good dramatic element.

[Xack]

+ Guiteau
-Hinckly

Guiteau - 11
Proprietor - 10
Czolgosz - 10
Hinckley - 10
Zangara - 10
Byck - 10
Fromme - 10
Moore - 10
Booth - 10
The Balladeer/Lee Harvey Oswald - 10
Hinckley - 9

[ErikProuvaire]

+Squeaky
-Byck

Charles Guiteau - 11
Proprietor/Lee Harvey Oswald - 10
Czolgosz - 10
Hinckley - 10
Zangara - 10
Byck - 9
Squeaky Fromme - 11
Sara Jane Moore - 10
John Wilkes Booth - 10
The Balladeer/Lee Harvey Oswald - 10
Hinckley - 9