Ellery Queen1975

Ellery Queen:
Now I know who killed Alvin Winer, and I'll bet you do, too. I'll give you a little help: it wasn't Dan Murphy. But if you think about the clues, they should all point right to the killer. Now remember, Alvin Winer was color blind, and this is the second time I almost left my hat behind me. All right, who's the guilty party? Buddy Parker? Gary Swift? Herb Morrow? Or was it somebody closer to home, like Penny or Dina Carroll? Maybe, just maybe, it was someone else.