. >> pank rangers shut the park down forn response to an attack to a teenage girl and the 19-year-old jogger was attacked from behind by a man with a gun and sexually assaulted today. >> i'm shocked because this is so local. >> reporter: he wore a black mask and dark hoodie an got away in an unknown direction. sky force over the direction in west norton and montgomery county looked for evidence. in another section of the park, investigators set up a command post where they worked well into the evening. >> it was one strand of tape that i saw and i just saw police line in our cross. >> and this is a park where groups hold 5-k runs and where parents bring their children and walkers and bicyclists go to exercise and those nearby are shocked by the crimes that hit close to him. >> it is not a place where these sort of things happen. i've never heard of anything bad here. >> i'm sure that when people hear about what happened here, it is like oh, my gosh, you can't go anywhere by yourself any more. >> reporter: the victim was released from the hospital earlier tonight. police are asking any