Originally published Saturday, November 15, 2008 at 9:25 AM

Dark clouds tumbled overhead on that afternoon 30 years ago, in the last hours of the congressman's mission deep in the jungle of Guyana.

Dark clouds tumbled overhead on that afternoon 30 years ago, in the last hours of the congressman's mission deep in the jungle of Guyana.

With a small entourage, Rep. Leo Ryan had...