The Killing — Frank Kane

Three stories for the price of one from a master of the mystery short story.
“The Killing” -- The Blue Queen was a sure thing, a thoroughbred horse that could make its owner a killing at the race track. Connie Witt as the owner of The Blue Queen had what every track man dreams of, a horse that was all heart, mounted on four of the fastest legs in the game. Enter the grafters and blackmailers and maybe there would be a different kind of killing going on.
“Finish the Job” -- Johnny Liddell, private detective, had a job to do or be finished.
“Key Witness” -- While waiting for a bus, Fred Morrow had just witnessed a murder -- the victim, he knew later was Julio Rigas, a Puerto Rican war counselor and member of the “Black Aces” gang was stabbed to death with a knife. Now Fred is thinks he wants to testify despite the death threats that he and his wife are receiving. But everybody has their own angle with this key witness that they hope will unlock the door to his testimony.