Didn't he change the Yahoo password by prompting one of the security questions, he had the answer to where Sarah and Todd were married because of what he'd read in the press? Thus he was presenting himself as her and was able to set another password that allowed him into the account.
I recently spent time on a jury. There were two charges. One was a drug sale, and the other was an additional charge because it was within 1000 feet of a school. The second charge would have added a couple of years to the sentence.
While it was agreed that he was guilty of count 1, (and thus count 2) his part of the crime was minor. He WAS guilty, but in a peripheral way. No one disagreed with that. The disagreement came down to whether or not he deserved to go away for a couple of more years because of the second count.
After a lot of debate, we all agreed that we were over stepping our bounds and that the judge needed to make that call—not us.
My guess is that is what is going on here.