Obviously for his hit on Marian Hossa. He left his feet prior to the hit but he definitely led with his shoulder and his elbow did not appear to come up. The shoulder most likely connected with the jaw. Torres didn't receive a penalty for the hit but the fact that Hossa left via stretcher and probably a concussion will have Shanahan review it.
I don't think he should receive a supension but the refs should have definitely given a penalty for leaving the feet. Some will also say it was a late hit.