Alex Ryvchin

The provided news articles focus on a mass shooting that occurred at Bondi Beach during a Jewish festival. Israeli President Isaac Herzog visited the site to lay a wreath and stones from Jerusalem in remembrance of the victims. A paddle-out event was also held by surfers and beachgoers to pay tribute. The articles detail the reopening of the beach and the community's response to the tragedy. The co-chief executive of the Executive Council of Australian Jewry is mentioned, but not Alex Ryvchin. Therefore, based solely on these articles, Alex Ryvchin is not newsworthy or relevant to the events described.