Hmm. It seems that some film company is doing a remake of The Texas Chainsaw Massacre. Not exactly my kind of movie. The trailer for it was five minutes long, and indicated absolutely nothing like what I pictured when I thought of this movie before.

Unless this remake will be radically different, it seems it isn't just a slasher flick.
Nonetheless, I don't like scary movies.

But that's not what I'm posting about. Right before it actually said the name, it said "Inspired by true events".

My question is WHAT true events? The only thing I know about the first one is that the guy with the chainsaw was called "Leatherface". Were the true events just a gory mass murder, or was it something else?

The "actual events" that the movie is allegedly based on are the actions of Ed Gein. In reality, the story from the movie bears no resemblence to what Gein did (other than making things out of human body parts).
On another note, the original TCM (I own a copy) is NOT a slasher movie. Most of the violence is offscreen or in shadow.

Like Jack said it's all just loosely based on the actions of Ed Gein, who would make furniture and so on from his victims skin.