Sorry Dude but Stalin has the record of about 21 million...
In forementioned Bosnia, forementioned Muslims and they croate allies are still holding the record. last time thay fought Serbs, thay found they suggardaddy in Hitler, and killed in total some 800,000 Christian Serbs.
No on of nazi murderers were arrested, and hatenance lasted until new war in 1992 broke out, this time Muslims and croates finding new suggardaddy in shape of Bill Clinton.
The rest is history, not finished, nor it ewer be finished.
I was gonna say, the Commies make the Nazis look like amateurs.
Nope my friend. For mass killers, here are the top three:
(1) MAO - More than Hitler and Stalin put together and his damn government is still in power
(2) Stalin
(3) Hitler (Hitler had a much shorter term in office due to that "take over the world" thing).