Negativ reaction, is an episode I like but now the recent viewing something bothered me. I realy like the climax when Columbo reveals the murderer at the end but Columbos trick to fool Dick van **** with the enlarged photo should realy not work because it was not the last picture of the crime, Dick got a photo with the blackmail letter, Columbo showed him a couple of photos that he found in the fireplace and there should be plenty of photos that the LAPD CSI had taken.

But maybe Dick van **** felt some pressure and immediatily wanted to beat Columbo with is misstake and did not think of other possibilities.

The ransom photo sent with the letter WAS the last photo taken and it DID match the negative in the camera.

The discarded photos in the fireplace were taken FIRST and discarded because the lighting or exposure were off. Columbo noticed that the photos were imperfect compared to the final photo sent, and this was part of what incriminated Galesko.