Hi!

Where should the comma go in the following sentence?

Throughout the novel, Steinbeck has foreshadowed the novel's ending by giving some details about Candy's old dog which Carlson shot since it was getting too old and useless.

Should it go after the word "dog" or after the word "shot?"

Please Help!!
Thanks!!

2 answers

P.S. or should there be no comma?

Please Help!!
and that is sad:,(