Jeziorski, a 43-year-old associate marketing professor at UC Berkeley's Haas School of Business, was allegedly shot and killed in Athens on July 4 near the home where his two children -- Zoe and Angelo -- live,

Greek officials say the broad-daylight attack came one day after a custody hearing over the victim's 10-year-old twins.

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.