A police officer in Waukegan saved a teen just before she was able to run in front of an oncoming train.
Waukegan Police received a call from the girl's sister, warning that she may try to harm herself and authorities tracked the teen's cellphone to her.
Officer Harris saw the girl and twice told her to stop. She didn't. "That's when I just sprint after her and tackle her," Harris told InsideEdition.com.