World leaders mourn assassination of "friend" Shinzo Abe

World leaders past and present mourned the death of former Japanese Prime Minister Shinzo Abe, after the man many called their friend was assassinated while campaigning in western Japan Friday. Abe, the country's longest-serving prime minister, was 67.

Canadian Prime Minister Justin Trudeau said Abe's murder is "incredibly shocking," and he is "deeply saddened."

"The world has lost a great man of vision, and Canada has lost a close friend," Trudeau tweeted. "My thoughts are with his wife, Akie, and the people of Japan as they mourn this loss. You'll be missed, my friend."