The parents of a 30-year-old woman whose body was found after she went for a run in New York City say they are counting on authorities catching the killer.

Karina Vetrano's mother, Cathy, said at a news conference Sunday that her daughter's killer must know the whole world is seeking justice.

Her daughter's body was found late Tuesday night in a recreation area adjacent to her home in the Howard Beach section of Queens. An autopsy showed she died from strangulation. Her clothes were in disarray, indicating a possible sexual assault.

Karina Vetrano's father, Philip, a retired firefighter, said the family is counting on the hard work by the New York Police Department to eventually find the killer.

The news conference came a day after their daughter's funeral.