Olena Matviienko’s journey to find Illia crossed four international borders.

But since the Oct. 7 massacre, Cohen has taken on another role: bringing Lego to injured Israeli soldiers. In his conversation with the Journal, which has been edited for length and clarity ...

The Russian soldiers found him a day after his mother ... Photos from a family friend showed his former home in rubble, his two boxes of Lego gone, his five outdoor cats and two dogs vanished.