
Without the comma ;-)

Are you sure? "o" means both "he,she,it" and "that". If we don't
use a comma, "o" may mean "that", so we should use it.
He was in that shower: O duştaydı.
He was in the shower : O,duştaydı.
Take care:)

Thanks :)
Take care.

I hope You won't forget these explanations. Take care.:)