"Crime Watch Daily With Chris Hansen" has exclusive new video of Karina Vetrano captured moments before she was attacked at a Howard Beach, New York park.

The 30-year-old woman vanished about 5 p.m. Aug. 2 while on a solo jog through a marshy area of Howard Beach called Spring Creek Park.

Vetrano was beaten "quite severely," suggesting she put up a "ferocious fight," NYPD Chief of Detectives Robert Boyce said in an Aug. 4 news conference. The medical examiner determined strangulation to be the cause of death, and officials have said she was sexually assaulted, WPIX reports.

Investigators said without witnesses their best chance of finding Vetrano's killer was to create a DNA profile using a sneaker, ear buds and a used condom found at the scene, as well as DNA discovered on Vetrano's body.

That DNA profile has been created, but has yet to yield a match in the nationwide database, officials said.

Vetrano's father typically accompanied his daughter during an afternoon run, but due to back pains had to skip the day she was ultimately killed. He, along with a search party, found her body about 15 feet off the jogging path hours after she went missing.

There's no evidence she knew her attacker, officials said.

If you have any information you can submit a tip anonymously at CrimeWatchDaily.com, or call NYPD Crime Stoppers hotline at (800) 577-TIPS.

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