If I wanted to stalk Tav I would have him become addicted to a substance that takes away the mind, consumes his wealth, costs him the support of his family and destroyed his every prospect for future advancement so as to leave him helpless in life's greatest times of crisis, such as the death of a parent, only to leave his soul hollowed-out and his body weakened unto death.
That's what I would do.
But only because I possess an unholy degree of viciousness.