Why 319? by Mark Love
A serial killer is on the loose in metro Detroit. Three female victims have been discovered in room 319 of different suburban hotels. The only clue is the taunting message "Why 319?" written on the mirror in the victim's lipstick.
Detective Jefferson Chene heads up an elite squad of detectives assigned to the case. With no home life, he devotes every waking moment to catching killers. But this one is elusive. A startling revelation busts the case wide open. He’s closing in on the murderer, but will it be before another young woman loses her life?