It's just unclear from the newspaper whether Bill was defending or blocking.
The notes are more interesting. Here, I'll assume that Bill was blocking (scaring with stomping) on the first night, so on that night, he was most likely defending; the descriptions are too different.
If so, then the note about Ruddy is true; he was blocking and didn't go anywhere. The note about Aru turns out to be false, but it's difficult to draw conclusions.
Ara, what do you think about the two conflicting notes, and why don't you believe the hacker's note?
For now, I'm inclined to believe the note about Kosh-Vesper. I don't understand why they were defending Kosh.