David Mcallum is best known for his roles as Illya Kuryakin from The Man from U.N.C.L.E., and Ducky on NCIS. Now you can add to his resume, crime fiction novelist! McCallum has written the highly entertaining ONCE A CROOKED MAN. I had a chance to set down and read the thriller a couple of weeks ago and I have to say I definitely give it a two thumbs up!  ONCE A CROOKED MAN is a polished crime fiction debut that shows McCallum's ability to intrigue the reader while spinning a fun, tense tale.