Any confirmation if he is on a boat on the river? If so and he has a night scope, that could be a real problem.
There would be very few people for him to shoot at from the river. If he want down river, he is going to hit rapids that a motor boat can’t handle.
Not a problem at all. An armed drone would make Mr. Card’s water nap inevitable.
“… on a boat on the river…”
with tangerine trees and marmalade skies…