Wow, what a crazy situation...hard to analyze when you're not there watching it all happen. Based on what you've said though, I can offer a few thoughts that I am quite certain are true:

- First of all, you're co-workers are really on the sensitive side. I mean, things happen, office politics, etc. But it sounds like they're a couple of powderkegs always about to go off. The kicker for me is that this April sent out an e-mail to everyone "defending" herself. That is way, way, way out of line. You don't start fights via e-mail like that. Believe me, your supervisors certainly won't take kindly to that. That is not typical office behaviour...in fact it is probably a fireable offense.

- It sounds like you sent an appropriate e-mail to your supervisor, explaining your slight discomfort about the situation. It sounds like everyone at the top is in panic mode, which either means a) there is something to be worth panicking over, or b) they are blowing things out of proportion. It's hard to tell which one of those would be the preferable choice, though one always wants to have good bosses.

- The lying about your call numbers...yeah, I can see how your co-workers might take that the wrong way. But you certainly had your reasons, and I think you explained them quite well. I mean, for crying out loud, we're all human, and we're all just trying to do what we think is right at any given time.

Anyway, it sounds like you're playing your part just fine, though I can understand why everything would make you so upset...it would make anyone upset to be treated that way. I'd say just keep going with your instincts and hope the bad blood blows over. If not, you've done as much as you could.