http://www.foxnews.com/story/0,2933,245919,00.html
He didn't say too much.
"DR. MICHAEL BADEN, FORENSIC PATHOLOGIST: Right. Yeah, there it's a 13-page, very thorough, as was mentioned, autopsy report, indicates I count close to 30 blunt force impacts with a blunt instrument. Not a very heavy blunt instrument, like a baseball bat or a hammer or a tire iron, a lighter one than that, which caused only one fracture. Fracture to the back of the head. And there was also strangulation marks manual strangulation marks on her neck."
I'm still inclined to think it was a tire iron.