Police are investigating the death of Jasmine Gonzalez, a 22-year-old woman found dead in the Bronx River Park Sunday morning.

Gonzalez was found with multiple stab wounds to her torso around 6 a.m., police said.

No arrests have been made, though the investigation is ongoing.

The Daily News reported that Gonzalez’s ex-boyfriend was taken into custody as a person of interest. Her family told the paper that the two had been fighting over their 2-year-old son, and Gonzalez’s mother said she saw the ex-boyfriend’s hat at the scene of the crime.

“That’s the devil,” she said, pointing at the hat.