I just think it's kinda of cool if he was. Freddie was different, like -- WEIRD eccentric different cause I read he wouldn't even kill a bug. And most left handed people are, well -- different!
Yes he was. You must be left handed too, I mean for you to be able to pick up on something like that. Follow this link and it gives a list of other south paws.
http://uncyclopedia.wikia.com/wiki/Left-handed_People