I am sure glad to hear he is staying in the hobby.
What a strange way for somone to sabotage a tank! There are so many easier ways to kill a tank. It would take a devious mind to take the time and risk of capture to do that. It sounds to me like an equipment failure, maybe an auto water top-off gone crazy, but then there would be water everywhere. Eric is a bright guy so I assume he has already ruled that out, but it just seems so strange that someone would go to such lengths. I hope he finds out who it was, because that person is dangerous. I have to believe that a person who would do something of that nature, could potentially do something worse.