Description:Is this the face of a killer? Mexican authorities are trying to find out. Five people have been mauled to death in a string of recent dog attacks, and now authorities are rounding up some of the city's stray dogs. All of the victims, including a one year old child, were found with bite marks on their bodies and died from the severity of their wounds. At least 25 street dogs have been captured to determine if they were involved in the attacks.(1:05)