Transcript for Woman chases down man who allegedly flashed her

We turn to a mother you do not want to mess with. A military vet out on a jog when she says this man flashed her so she chases him down while trying to call for help. Kaylee Hartung has the story. This suspect targeted the wrong woman. He sure did. Good morning, Cecilia. Not once but twice a man allegedly indecently exposed himself to another jogger on a what happened next is caught on camera. It's probably not the reaction he expected when 33-year-old iya confronts an alleged flasher. I saw a guy pulling his pants down. I did not put a lot of thought to it but when the guy ran towards me and flashed his pants one more time all the way down to his knees and reach his hand out, I realize this is not just an emergency and he is a flasher. Reporter: This mother of two did not miss a beat before jumping into action. Watch again as she turns around and runs after the man who she says also reached out and tried to grab her. I was probably one or two women running there, he just thought, oh, that will be her. Bad luck, not the right choice. Reporter: What you don't see in the surveillance footage is this former member of the Israeli army tackling the man holding both of his hands behind his back while asking bystanders to call police. I was asking people to call the police and ask for help. Nobody did. I let my hand off him because I realized that nobody can help me out other than myself. Reporter: Then as she grabbed her phone to call 911 herself the man broke loose and ran off. This morning Massachusetts state police posting a portion of the video of the incident on their YouTube page hoping to identify the alleged flasher. I think she put the fear of god in the man. Reporter: She wants to send him a message. I do want him to get caught. I chased this guy down. I want him to know that I'm not afraid of him. You see the suspect in the surveillance tape there, a white man with a heavy build, short dark colored hair and receding hairline. Police only released a portion of the video hoping swung would recognize him and call, but they have the whole incident on tape, Wow. Like you said, good for her. Exactly. She put the fear of god in him. She sure did. Thank you. New concerns of vaping after

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