Bingo.
So this talk of police investigations and possible criminal charges is ridiculous. If his activities caused as large an increase in electricity costs as the superintendent implies they had, then you'd think that at some point during the 10 years he was running SETI@Home that someone from the district's accounting department would have started wondering why their electric bills suddenly increased for seemingly no reason. I call bullshit.
At best, they could fire him (if he hadn't already resigned) for his making poor "business" decisions (in their view). But they certainly can't claim this software was "unauthorized", and therefore a criminal violation, when he is the guy who *they* appointed to make those decisions on behalf of the district.
You could just as easily argue that letting the CPUs, that they *paid good money for*, sit idle 75% of the time is a waste of resources that could otherwise be put to good use. No doubt, most people who run SETI@Home probably have used this, in part, as rationalization for their participation in the program. So, from a different point of view, his decision to maximize the utilization of the district's computing facilities was a good one.
The whole reaction to it reeks of some kind of grudge against the guy.