Carabinieri officer Mario Cerciello Rega's wife, Rosa Maria, right, follows the coffin containing the body of her husband during his funeral in his hometown of Somma Vesuviana, near Naples, southern Italy, Monday, July 29, 2019. Two American teenagers were jailed in Rome on Saturday as authorities investigate their alleged roles in the fatal stabbing of the Italian police officer on a street near their hotel. (AP Photo/Andrew Medichini), APTOPIX