John Frenzi was the mob’s deadliest killer–until he became their most lethal adversary!
A throwback to the 1970s vigilante series that once flooded the paperback market, the Frenzi series by R. J. Calder is a high-octane, all-action pulp adventure!
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He was the mob’s deadliest weapon…until he became their most lethal enemy!
Meet John Frenzi, a tough-as-nails Mafia enforcer in Los Angeles, a man without conscience, a human weapon. He knew one thing and one thing only: The cruel art of violence. His nickname among the Mafia was the Killfrenzy, for his very gruesome abilities. He was trained to do the Family’s bidding, murdering anyone who stood in their way. But that was before a brash young capo targeted his innocent neighbor.

The most feared mob enforcer in the country is back with a vengeance!
John Frenzi, the man the Mafia nicknamed the Killfrenzy, has arrived in Miami with one goal: Escape the cycle of violence and start a new life. But for a man like Frenzi, this is easier said than done! Especially with a fifty thousand dollar bounty on his head!
Soon he finds himself caught up in the desperate plot to assassinate Fidel Castro being orchestrated by a tiny band of Cuban exiles with funds from the CIA, and weapons provided by the Mafia. It’s a web of danger and death, with a bodycount that rises as fast as the temperature in the Everglades.

The man the Mafia couldn’t kill is back!
John Frenzi, the man who has terrorized the mob from coast-to-coast returns in another remarkable adventure.
When his car breaks down outside of a little town called Belle Rivière in Louisiana, he hopes for a quick tire change and to be on his way, but what he finds is a trio of Mafia killers, a boatload of heroin, and a vicious, corrupt police chief with an even more cruel son. Frenzi wanted nothing to do with this town’s trouble, but when he is nearly killed and trapped in this dead-end town, he has no option but to fight back.

When the cold war threatens to heat up, the U.S. has one man they can turn to–John Frenzi!
When a series of political assassinations rock Europe, the C.I.A. is stymied thanks to leaks deep within the covert agency. With the biggest hit yet looming on the horizon, an ultra secret branch of the Agency turns to an unlikely source to stop the murders and save countless lives: John Frenzi, the ex-Mafia enforcer known as the Killfrenzy!
The deal is simple: Kill for Uncle Sam and get a new identity.

John Frenzi is dead! Long live the Killfrenzy!
Ever since his bloody war against his Mafia brothers began in Los Angeles, all John Frenzi had wanted was to be left alone. Now, with the help of the United States government, he has a new identity and a new life in rural Gray Hook, Montana, working on a horse ranch. He has buried John Frenzi–Mafia enforcer–for good.
Until the Silvestri siblings arrive.
Stefano…his racket is drugs and he’s growing grass for the Family back in California.
Rocca…her game is skin pics, drugging and seducing young women for profit.

Frenzi is up against against human traffickers in Texas…and he is taking no prisoners!
John Frenzi, the man the Mafia couldn’t kill, is trying to get some R&R in Corpus Christi, Texas, when a body washes ashore with all the hallmarks of a Mafia murder. Soon he’s embroiled in a conspiracy to kidnap and sell vulnerable young women to sadistic white slavers.
These are women on the fringe of society. No one is looking for them. No one cares if they live or die. No one…except the Killfrenzy. And he is willing to unleash hell on earth to rescue these lost ladies.