There are 3 books in the Dr. Vigilante series. The newest book is Dr. Vigilante III which came out in 2016.

1
Dr. Vigilante

Book cover of Dr. Vigilante
Doctor by day. Vigilante by night. Robert lives a double life in New York City. He spends his days treating patients at the St. Jude’s Hospital ER and his nights going after the psychopaths who wrong them: the child molesters, wife beaters, and rapists. But when the fiery, beautiful new…
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2
Dr. Vigilante II

Book cover of Dr. Vigilante II
Flying from the wilds of Manhattan.

Caught in the web of the Amazon.

Robert returns to Guatemala to find horrors raping its jungles.

He and his mentor Guillermo, freedom fighter and medicine man, go on the warpath against drug lords who've been ransacking villages, kidnapping young men and women.

For…

3
Dr. Vigilante III

Book cover of Dr. Vigilante III
Wanted by the NYPD for assaulting police officers.

Wanted by his lover for rescue from a fiend.

Robert has been sent a personal message by the Owl, a serial-rapist who has been torture-killing women in New York City for months:

“Find me in 72 hours or I rape-kill Sharon in…