lol Everyone in Higurashi kills and tortures people. Even Rika killed her friends a few times. If it weren't for the Hinamizawa syndrome, none of that would happen though. Shion is a nice girl, she just snapped, like Keiichi did, and like Rena did, like all of them did.
But if you really hate it so much, don't watch Higurashi. o3o