Can I be suspended for THIS?

Ok , so my principal put about 5 people in a room because we didn't want to go outside. And this one boy lit a match , and when my principal walked back he smelled it he already knew it was him because he found the matches by him and he did it before.. And knowbody wanted to tell it was him so he suspended everyone who was in there for not snitching.... CAN WE BE SUSPENDED FOR THAT!?!?!?!