had to be rescued. the federal government is looking into a series of fatal shootings by philadelphia police. elaine quijano tells us the investigation was requested by the police commissioner. >> i take this very, very seriously. >> good girl! >> reporter: and chip reid with s with dogs learning to be an even better friend to man. >> it would be accurate to say that these dogs save sflooifs >> absolutely. i believe they do. captioning sponsored by cbs this is the "cbs evening news" with scott pelley. >> o'donnell: good evening, scott is on assignment, i'm norah o'donnell. hundreds of people in southern california have been chased out of their homes by a wild fire is growing larger by the minute. the fire 90 miles east of los angeles covers more than 15 square miles. fire officials estimate 15 structures have been destroyed, 600 homes are in the fire's path