In the Seattle area, a blocked view of the water by one neighbor's tree or a tree in the park can reduce the home value by $0.5M.

Who you gonna call?
The tree hit man.
Some young man with plenty of risk taking male hormone.
He uses many of the above mentioned tricks, plus....

On the fourth of July there is a lot of noise from firecrackers and sirens. This noise will cover the sound of a handsaw. He cuts 3 rings through the bark. They will know who did it. Just stand of the front porch and the incentive can be reduced to 1, 2, or 3 homes that benefit. But they can't prove anything.

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Samurai mean assassin

There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. -Ernest Hemingway
The man who makes no mistakes does not usually make anything.-- Edward John Phelps