Actually, this does not surprise me in the least
We have this kind of horror happen all the time here...sad to say

There are many times kittens are dumped in bags and left to die, and some are lucky to find a human helper
My mother's two cats, Pepi and Yoda were two that were found in a bag, left to perish

It's city people that do this, Country folk wouldn't dream of doing such a horrible thing
Sorry to say, but City people infuriate me in this regard
SERIOUSLY!

Listen, if you don't want your kittens/puppies...there are far more humane ways to deal with it
THINK ABOUT IT