QUEM FOI?!

Someone has been messing up and disturbing the peace in a boy's house. And the whole family's question can only be one: who was it?!
 
Who broke the car window? Who put cereal in the pasta? Who drew a dragon on the wall? Mom, dad, sister, brother, grandpa, grandma all want to know. And the boy only knows how to say: I didn't go! But little does he know that the greatest of mysteries is yet to come. And then it will be the boy's turn to ask: who was it?