Over at the Ellery Queen blog there's an essay called "The Changing Face of Mystery Fiction" by Marvin Kaye. The essay is basically a how to write a who dunnit.
While the author misses this type of fiction, I've found over the years that I was getting bored with this type of puzzle solvers. I was given a copy of Agatha Christie's "Murder on the Orient Express" for Christmas and I read over two hundred pages and with just forty-three pages left I set it aside. I found that I didn't care who did the murder. I got bored with Hercule Poirot sitting around and telling everyone they were wrong in their deductions and he was always right in that smug way of his.
I have read many of Agatha's Christie's books over the years, I'm a Miss Marple fan, but I love the newer books that have some action in them. I don't care for the big reveals with everyone sitting in a room waiting for the detective to reveal the murderer. In this day and age the murderer would have been long gone. The truth is we're not a polite society anymore, maybe we never were.
Knowing this I can see why the new generation of writers want to put more action into their stories. But the truth is there are still red herrings and plot twists in these new mysteries, the criminals and the detectives just aren't so very polite anymore.
How about you? Do you miss the old puzzle solvers?