I am not Cam, but I was on prozac years ago, I never felt like murdering anyone or suicide.
I know and knew many people on this med and never had those side effects.
But everyone is different, my best advice is the moment you start getting any feelings that seem negative, report them to your doc ASAP, I use to do that when my pdoc was trying different meds, till we found which ones suited my disorder the best while having the least amount of side effects.
CamW is the best one to ask about this stuff, but I just thought I'd add my 2 cents about my experience
I am sure as soon as Cam has time to get online here he'll get to your question, he is a "dear" like that, and we are very fortunate to have someone like him here

Take care now,
DE

In giving advice seek to help, not please your friend
SOLON