NEW YORK (CBSNewYork) -- New video has surfaced of a Queens jogger minutes before her murder.
Karina Vetrano, 30, was murdered while running through Spring Creek Park in Howard Beach on Aug. 2. Police said she was strangled and possibly sexually assaulted. Her father along with authorities found her body hours after she didn't return home from her jog.
New video airing on Crime Watch Daily, a nationally syndicated show, shows Vetrano jogging carefree down a street bordering the park, with her long hair held back in a pony tail and wearing ear buds.
The video is the freshest clue for the public to see in the now six week old murder mystery.
"You never know in the sense of somebody in Arkansas, some place that may hear something about it and come forward with a piece of information," Police Commissioner Bill Bratton said.
The video was released with the approval of Vetrano's family.
"It was provided as part of the continuing effort, along with the rewards, to try and find out what happened on that day," Bratton said. "I think we have done all that we can to try and keep that story alive in the public mind and consciousness because it spread such fear through the city."
As CBS2's Jessica Layton reported, Vetrano's family hopes the video will inspire someone to come forward.
"Think that it could be your child," Phil Vetrano said.
The video is one of the last images Vetrano has of his daughter.
"Very disturbing to watch that, to see her like that," he said.
It's what the video doesn't show that has the NYPD and the Vetranos so puzzled.
"It doesn't show anybody following her. It doesn't show anybody in a car behind her," Phil said.
Detectives have a DNA profile of Vetrano's killer, but so far have no matches.
"If we encounter a new entry into whether it's our own system, state system or elsewhere in the country that might be the case breaker for us," Bratton said.
Standing on his front porch with a police patrol car still parked outside the family home, Vetrano said he's hoping the video makes someone who knows something sympathetic enough to come forward.
He believes the person in a sketch who is wanted for questioning could provide the best clue as to who killed Karina.
"He's not worth protecting," Phil said.
In the meantime, the family has struggled to heal.
"Once this scum is caught, maybe we can begin to heal. But I doubt it," Phil said.
The reward for information leading to Vetrano's killer has grown to more than $300,000. A GoFundMe account set up by Vetrano's family has raised more than $270,000, while a $35,000 reward for information is being offered by the NYPD.
On Sunday, Phil Vetrano said he's considering hiring private investigators to aid in the search for his daughter's killer.
Anyone with information is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782), visit www.nypdcrimestoppers.com or text tips to 274637 (CRIMES) then enter TIP577.
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