Cops Want to Talk to This Man About Jogger's Murder Karina Vetrano was sexually assaulted and strangled while running in NYC By Michael Harthorne, Newser Staff Posted Aug 31, 2016 1:02 PM CDT 20 comments Comments Police believe this man may have been a witness to the murder of New York City jogger Karina Vetrano. (New York Police Department) (Newser) – With few leads in the brutal murder of a jogger earlier this month, the New York Police Department has released a sketch of a man it believes could provide a much-needed break in the case, the New York Daily News reports. According to WABC, the man in the sketch was spotted by a utility worker near Spring Creek Park in Queens around the same time Karina Vetrano was killed Aug. 2. The worker was surprised when he saw the man coming along a path from the park and initially thought he was about to be mugged, Newsday reports. Police don't believe the man in the sketch is Vetrano's killer, but he may have seen something. "He is not a subject; he is not even a POI," Chief of Detectives Robert Boyce tells the Daily News. Vetrano went for her normal run around 5:30pm Aug. 2, entering the park a few blocks from her home. Her body was found that night in the park; she had been beaten, sexually assaulted, and strangled. Police believe it was a random attack. They have the killer's DNA from Vetrano's body and phone but no matches so far. Vetrano's father recently went on the radio to discuss a "mystery jogger" who had been running in the area but hadn't been seen since Vetrano's murder. That man turned himself in to police and was cleared after it was discovered a knee injury had kept him from running. The reward for information leading to Vetrano's killer is now $300,000.