Police in Greece are searching for the killer of a University of California Berkeley professor who was shot and killed on July 4 while visiting Athens to see his children and attend a family custody hearing.

UC Berkeley professor Przemyslaw Jeziorski was fatally shot in Athens while visiting his children. Greek police are probing personal motives, including a custody dispute.

A UC Berkeley professor was shot multiple times and killed in broad daylight outside in the outskirts of Athens, Greek police said.