Think of how many things have to happen for anything else to happen. Imagine how many dominoes had to fall, in the correct order at the correct time, for us all to exist as we are. The same is true of people who don't live, since we all die, and those who die violently--perhaps more so, since most of us don't. Think about it long enough and you'll start to worry about free will.

Horror, as a genre, lets us claim some control over life's apparent chaos (or its infinitely intricate circumstance); even if we die in gruesome fashion, at least there's a story to it. At least there's a reason we can understand.

Fulci's films deny us that control. There is a reason. You will never understand. You will wonder forever.

Not to mention, one Fulci kill is worth ten Friday the 13th kills, easily.