The main point I'm making is that technically, aside from some guards (who may or may not count as innocent, depending on your view) and potential (but not definitively stated) casualities due to shots fired in the air, EN and her operatives literally killed no one.
Yep. The crossfire of EN members being attacked, immediately after the bridge detonation... which only happened before the planned time (i.e. when no one was around to be hurt) because the EN member with the detonator was... attacked.
If there's anything to take from this, it's that the GM can and will readily turn posts born from a misunderstanding or two into a comedy/tragedy of error(s), so being cautious with what you post is almost mandatory.