15 Story Detective was originally All-Story Detective, which ran for only six issues before being rebranded and running another 9 before folding. It is unrelated to 15 Mystery Stories, which was originally Dime Mystery, and ran for 154 issues before being rebranded and folding only five issues later.
via the collection of 1whoknewcthulhu
Also, The Crown Of Murder
Also, Murder Is My Business and Getaway Girl
She Was A Woman Who Stopped At Nothing