Berlin-Two German teenagers robbed a girl but accidentally left their own pictures behind for police on a discarded mobile phone. After stealing a 15-year-old's shoes, money and mobile phone, the two older girls gave her an old mobile phone, police in the western city of Bochum said on Wednesday. But the two 17-year-old had forgotten that the phone had their own photos, striking smiley poses, which police published online on Tuesday in an effort to find the culprits. The two muggers turned themselves in when the pictures appeared on the evening news.