Well, what happened is making a bit more sense, though the more that's revealed, the more I'm confused as to why it's a secret from the reader when Prowl was told more than we were, given his reactions.

Was the new report intended to sound like an assassination, or was it meant more like 'after contracting a severe case of cosmic rust that spread to his energon'? As is, it reads more like the spread was done to him, rather than just happened.