Joe Ryker — by Jack Cannon

• Aug-1974
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THE CRIMINALS DIDN'T TAKE THE STREETS OVERNIGHT. ONE BATTLE WON'T WIN THEM BACK. JOE RYKER'S READY TO STRIKE. As sirens wail in the heat of a city night, an over-burdened police department is up against a crime wave that's spreading like blood f...

• Oct-1974
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WITCHCRAFT AND RITUAL MURDER AN UGLY CRIME--AND IT'S ON RYKER'S TURF. A man in monk's robes, The Hammer of God, is butchering women to cleanse the world of witches. And Sergeant Joe Ryker's committing every sin in the book to cleanse New York of ...

• Mar-1975
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THE VICTIMS ARE THE LOWEST LIFE ON THE STREET. THE COP IS THE TOUGHEST IN TOWN. NOW THEY HAVE ONE MORE THING IN COMMON... Someone is slipping hot-shots--strychnine-laced heroin--to New York's hookers. Sgt. Joe Ryker couldn't care less, but the cor...

• Apr-1975
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A BRUTAL CITY. A JADED COP. A CRIME FROM THE DEPTHS OF HELL... Nothing surprises Sgt. Joe Ryker. Not corpses, crimes, nor sin of any kind. But when a beautiful New York call girl personally persuades him to investigate a missing persons report and...

• Jun-1975
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NO ONE KILLS ON RYKER'S TURF AND GETS AWAY WITH IT NOT EVEN A TRAINED ASSASSIN! RYKER: He's a renegade NYPD detective who deals in murder, street war and brutality. This time he's met his match. JORGENSON: He's the smooth-talking CIA man investig...

• Aug-1975
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NO ONE IS CRYING OVER THESE CORPSES. BUT TO ONE HARD-HITTING COP, IT'S STILL MURDER. In South America they call it Mono Blanco: the Death Squad. In New York City they call it justice. At the stationhouse and on stakeout, in a guarded hospital room...