There is more than one author with this name

CJ Henderson is the creator of both the Jack Hagee hardboiled PI series and the Teddy London supernatural detective series. He is also the author of The Encyclopedia of Science Fiction Movies, several score novels, plus hundreds of short stories and thousands of non-fiction pieces. In the wonderful world of comics he has written everything from Batman and the Punisher to Archie and Cherry Poptart.

He also writes under the name Robert Morgan.