Out of my brain on the 5:15
This is one of those fun little Whodunnits by Fred Guardineer. It appeared in Lev Gleason's Crime and Punishment #31 from 1950. Besides the title reminding me of a song, "5:15" by the Who, Guardineer's precise artwork reminds me of my old art school studies of perspective. Guardineer looks like he used his knowledge well in this story. It'd be hard to fake perspective when so many panels depend on it.
I flipped the final panels so you can read them without standing on your head.
I've also enclosed a couple of filler pages, both by C. H. Moore; one a sort of antique CSI and the other the ancestor of America's Dumbest Criminals. How about America's dumbest victims, too? The woman who undressed in front of the window peeper while waiting for the police: it's called exhibitionism.