Of the links I found, Bill Rood (apparently he usually goes by "Bill") is quoted in Kerry's puff-piece bio "Tour of Duty" in an innocuous way (in 'Nam, he called Kerry "Ichabod") Link
This link discusses interviewing Bill Rood for an anti-Vietnam war documentary that apparently Kerry was involved with.
More interestingly, one link (search for "Rood") leads to a letter wrote by a Bill Rood to antiwar.com, equating Iraq with Vietnam
Another link is an anti-Rumsfeld posting that quotes MoveOn.org as a news source.
If these are all the same Bill Rood, this certainly shows partisanship and motive.
Rood seems like a completely milktoast middle manager to me. His previous job was VP at a regional paper. I have no idea of his politics, but it's probably negligible based on his negligible resume.