Well, whats actually not clear from their message is if the person who is currently an "ex administrator" was an ex-admin at the time that they deleted everything or if they were fired because of a (bad) mistake and are now an ex-admin.
Being fired for an honest error made in good faith is a misclassification of such a problem. If a single current, acting employee causes an outage by way of human error, then process and planning are to blame for the destruction.
If there isn't a police report, and charges aren't pressed against a malicious individual, then the company may be at fault.
Certainly the employee could willingly and pro-actively step down, out of personal guilt and feelings of shame, but then, one need not qualify with "ex" as simply "employee" will suffice. A criminal incident is worthy of such a clarification, indicating that the incident is a deliberate attack, but human error is not.
