The ex-wife of a University of California, Berkeley professor who was fatally shot during a visit to Greece earlier this month is among five people who have been charged in his killing, reports say.

Przemyslaw Jeziorski, a marketing professor at UC Berkeley, was killed on a street near where his children live, his family said.

Greek police have arrested at least five people in connection with the killing of a UC Berkeley professor, including the professor’s ex-wife, according to CNN and local news reports.