Catman Murder Mysteries No 9: Milk, SandwichesS, and....Murder?

Sometimes it's really hard coming up with all these action packed scenes, y'know? Will Catman ever catch a break? 

Oh! The rail car dining room-thing they are in is based on this reference picture:

https://www.pinterest.com/pin/569916527832249561/

Will that link work? who knows! I've created a Catman board on pinterest too, to save all my reference pictures, so hopefully that will be helpful.