They were 'stunned' by the news. = The news 'stunned' them.
a theft that 'stunned' [='shocked'] the art world
His old friends were 'stunned' at his success.
(..) You ever going to go to class or... Classes will dull your mind. Destroy the potential for authentic creativity. Oh, I didn't know that. Nash is going to stun us all with his genius. Which is another way of saying he doesn't have the nerve to compete. You scared? Terrified. Mortified. Petrified. (..)2001 A Beautiful Mind