Workflow: how to send email to previous editor of a node

I am running Drupal 6 and the workflow module and I need to send an email to the last
user that edited a page when it get rejected so they know that they need to look at the
page and fix the problem. I also have the Token module running and it provides several
special tokens to use but there is not a previous editor token. I tried these tokens:
[workflow-current-state-updating-user-uid] uid of last state changer
[workflow-current-state-updating-user-mail] email of last state changer

These token give you the current updater that happens to be the user that is logged in
or [user-mail] [user-name].

Is there a way to get a hold of the previous editor to put that on the recipient
to send an email when the changes are rejected?

Thanks,

Nestor