BBM
She changed to self defense at least as early as 10/26/2010, as that's the date of the 'proposal' sent to the prosecution threatening to 'expose Travis' if they didn't accept a plea to 2nd degree murder (but I believe it was months before). I think once Nurmi was on the case that he (along with Samuels, according to testimony) approached her with the self defense angle and tried to match it as close as they could to what the prosecution was alleging in the sequence. They knew LE/prosecution had plenty of facts and evidence to prove that so they had to use what prosecution had but twist it into self defense.
Nurmi was plenty mad, and filed mistrial motions because the State changed its sequence, after all the trouble they went to to craft a story that used the State's sequences (and then 'fog' the rest as the knife part just couldn't be explained away in any self defense fashion once she'd shot and disabled him). Once the State changed their sequence it made the defense sound even worse, who stabs a guy more than 20 times and tries to cut his head off after they've already disabled him with a bullet to the head and could flee to safety?
I haven't found anything I can point to as to why the State changed their sequence theory, the bullet casing was always lying on top of the blood puddle seeming to be clean on top, the autopsy had been done and report issued long before, while the State was still going with gunshot first (regardless of what Flores knew and when he knew it), I hope once this is over and all of the sealed stuff is released we may know exactly why, but right now there are just too many holes because of everything that's been sealed to know for sure.