Oklahoma City Police are on the hunt for a suspected serial kidnapper. Officers say the same person may be behind three kidnappings this year, the latest of which happened on Friday. Authorities say a 12-year-old girl was kidnapped Friday by an armed man who forced her into a car, sexually assaulted her, then released her. Two similiar abductions occurred in September and April. Families are being warned that their children should not walk to and from school alone.