A monster? You don't even know the guy. You're going by a few audio recordings with absolutely no background, no back story of how these transpired, no knowledge of what may have precipitated the outburst and no personal testament to their everyday life together. I don't see how anyone can label someone a 'monster' without knowing them.
All these stories about how Gibson is a woman batterer - and I certainly hope he's not - yet we have absolutely no evidence of that. Heck, even this latest incident earlier this year where he supposedly punched the girls' tooth out didn't result in any arrest. So clearly there's some questions as to the validity. All we have is audio of a raged Gibson. Frightening? Certainly. A monster? Inconclusive at best.