I havent read a page of manga, but i just think that everyone talks about how Itachi killed the entire uchiha clan at like a really young age, I know hes all powerful and such, but it just seems like their HAD to be some strings attach

Imagine Neji trying to kill all of Hyuuga, it just doesnt seem plausible, even if Neji was 10 times stronger
unless there were strings attached or some wierd circumstance to it

plus the anime always mentions it, so there must be more to it than meets the eye