suggesting an evening of maybe too much drink, followed by a tumble down the stairs thing was, kathleen s fingerprints weren t on either glass. in fact, the prosecution said, kathleen s blood-alcohol content was low enough that she could have passed a roadside breathalyzer test. she wasn t drunk. she wasn t intoxicated um, she did have a little in her system but not enough, arguably, to have caused her to not be able to walk upstairs reporter: was the writer of fiction, making up yet another story, covering up murder as an accident michael peterson speaks out about it all including his interest in sex with men he says others knew all about it coming up this is not a family secret no, it s not. and then why he thinks kathleen most likely fell after a recent injury. he says she was on major meds. do you remember her being wobbly. oh, my god, yeah. when down the back staircase continues.