Thanks to a debate between two of my coworkers on who is more evil than whom, I have invented an equation that will settle, once and for all, this debate.
E = (dD/dt)max * M/(S*sqrt(W))
where D = number of deaths caused = D-D'/P
D' = number of justifiable deaths
P = population directly affected by person's actions
M = masochistic tendency (pain inflicted per person)
S = stupidity (S > 1)
W = access to weaponry (W > 1)
This operates on the idea that deaths caused by stupidity aren't as evil as deaths caused through cold calculation, and that people who have less access to weapons must really want to kill people to inflict the same amount of death as people who can just push a button to do it and are therefore more evil.
It requires tweaking, of course. Anyone who wants to do so can. Just thought I'd throw it out there.