Quote: Unless someone has a better reason, I'm going with she went nuts.
...the lamest, most overused, motive for murder in comic books.
Furthermore, if it was an act of a crazy person that made no sense, then how could Batman solve the mystery based on the "who benefits" theory?
As noted above, there really was no likely benefit to Jean (or any sane person) in killing Sue "accidentally" (if at all).
Therefore, having the Batman solve the case based on motive--when it was really a motivelss crime--is non-sensical.
Like I said before, all they had to do was have Jean intentionally kill Sue and the whole mystery would have held together pretty well. But making it an "accidental" killing unraveled everything.
