You touched on one thing I've been wondering: how many people worked at the lab? (The facility is 3,000 square meters, according to Wikipedia.) So is it 30?

You touched on one thing I've been wondering: how many people worked at the lab? (The facility is 3,000 square meters, according to Wikipedia.) So is it 30? 100? 1,000? This would be good to know if we're going to try speculating about what happened