Status Updates From Il gatto dalle molte code

As a serial killer novel with some (1940s) police-procedural feel to it - Ellery is an amateur sleuth, but he's surrounded by cops here, including his father - this unique entry in the series can suddenly have its 'modern' moments. Something seems very obvious in these late stages...but I'm not sure I buy it. I'm holding out for a twist. If there isn't one, I still like the book, overall - but we need a good finish.

Ellery Q. and his father enmeshed in a serial killer case has a different feel than all the other ones I've read. A lot of the discussion about what the psychology of an apparently random-victim killer could be seems like the template for similar discussions in modern serial-murderer books. I am very curious to see if all things are as random as they seem, and if a character we've met is the killer...