"I hopped to make your death quick and up to chance, I have not seen a man survive being crushed, but many survive being thrown." Claire said, retaining her stance. "Do those words seem familiar? They should; they're what you said before you moved toward him. No "city guard" would start with a death threat before trying to "arrest" someone. Your actions led to his act of self defense. What I 'saw with my own eyes' was you approach him As violent as Fromanzio was, in this event he was not the aggressor." she said, keeping her eyes on the Trent for, though he was sitting, she knew his powers allowed him to remain on guard no matter how he moved.
"And you may believe I'm being irrational, but my duty is clear; you attacked and killed our ally, you worsened the state of my home, worsened the already distant odds of our survival, and violated the law; both human and your own. Even your words spit on the law - you "hoped his death would be quick and up to chance"; if those words are to be believed, you never intended to allow Fromanzio to leave this nation." she said, not backing down.
"You know everything the trees of the world know; correct? If so, you know what the laws say I must do and you know me well enough to know I cannot back away from this course; not without just cause. I no more want to kill you then I do anyone; but you are giving me little choice; you have broken what oaths exist between our nations without remorse and threaten the stability both sides enjoy." she said, trying to make her point as clear as possible.
"Even should you live this day, I am honor bound to try to kill you for the rest of my life; even so far as to make war between our peoples. With all your knowledge, you must know how easy it would be to start such a war; you know how people think, how even now politicians throughout humanity are already considering such a war - if only for more land and resources. You must know much unneeded death will result from that. You have been around long enough to know that should a war befall our nations, lives will be lost - many of them innocent of all crimes. Even if you and the rest of your kind use all your powers, you cannot hope to stop such a war from costing lives on both sides - your forests and our cities will burn despite the strength of both sides. This needs to be resolved today, and I cannot see another way." she continued, explaining how bleak a future this would create and just how rationally she was thinking, as she tried to avoid war. "This may not be the spark of the war, but it will be fuel for it." she finished, hoping to make the point crystal clear.
The thoughts war with the Trents was not an appealing one. It would be long and bloody for both sides. Trents were many things, but common was not one of them. Their powers would protect vast swaths of the forest, but even they could not hope to protect against the technologically superior armies of humanity forever - eventually humans would learn to make weapons even their magic could not stop. Either the Trents would destroy them utterly or human progress would eclipse them and the reverse would be true. This needed to be resolved quickly else who knew how far the plague-like destruction would spread.
Remembering one of the Trent's earlier statements, she made a small aside. "Incidentally; impossible odds or not, sometime the impossible must be done for the good of all."