Greek authorities arrested the ex-wife of a UC Berkeley professor in connection with his murder in Athens earlier this month. Marketing professor Przemyslaw Jeziorski was fatally shot July 4 in the Agia Paraskevi district of Athens, authorities told Greek media outlet To Vima.

Our family is heartbroken, and we are doing everything we can to ensure that justice is served,” his grieving brother said.

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.