I guess the brake lines could have just decided to cough up all the brake fluid, but it’s not likely.
No one needs to call the world’s finest detective to this case, as all signs point to Oswald Cobblepot as the culprit.
While driving home with some major self-confidence mojo emanating, Isabella tried to stop for an oncoming train and it became immediately obvious that her brake lines had been cut, or some similarly damaging act.
Either way, Ed is going to undoubtedly take an even darker turn now that Oswald might not be as attracted to, and if Ed ever finds out what happened, Gotham City’s underworld will get even more complicated.