3000 - odd years makes that tree a more significant entity than some disgruntled fire-bug.
True.... but to take his life would make us no better than he is at the end of the day.
Simply put, no matter how despicable or low it is, life is life.... but there's nothing wrong with 40 years productive hard labour.... and the firebug will remember every day of it, which is more than he'd do if he were dead/executed.
So, COS, how wos them chariot races?