According to the Jedi Archives found somewhere not known to all, Master covey was using the toilet of his apartment. When he flushed the toilet, a rather large explosion broke off inside. Brown stuff scattered all over the room. After which, water sprinkled all over the room. He quickly took his repair kits and went on repairing the damage.
While he was screwing a bolt in the pipe, he found a penny and took it saying, "Oh look, a penny!". The penny was rigged with explosion. It exploded and he died.