Amateur detective Selena Gomez is on the case.
The 27-year-old pop star was pictured at Chicago's CrimeCon with her mom over the weekend at an event called CrowdSolve.
"CrowdSolve is an entirely new kind of immersive experience where you'll work to solve a real cold case that has been specifically chosen for this event," the event's website says.
The event brings together 300 amateur sleuths to investigate long-forgotten criminal cases. This year, participants delved into the slaying of Kurt Sova, a 17-year-old high school student from Cleveland who went missing in October 1981 after attending a Halloween party. His body was discovered five days later in a ravine.