Four hijackers take over an airplane, take the passengers hostage, and force it to land in Entebbe, Uganda in 1976 in an effort to free of dozens of Palestinians jailed in Israel.

Dan Eldon, who was only 22 when he was chased down and killed by an angry mob in Somalia, was one of the youngest photographic stringers in Africa. But his journalistic work, which had appeared in Time and Newsweek, showed only a...