Key dates in Argentina's human-rights trials:
June 14, 2005 — Argentina's Supreme Court strikes down two amnesty laws that protected hundreds of officials in the country's 1976-1983 military dictatorship from prosecution for alleged crimes committed against dissidents and other political prisoners.
June 20, 2006 — The first prosecution stemming from the Supreme Court decision begins, against former police Officer Miguel Etchecolatz, who's accused of murdering, kidnapping and torturing prisoners.
Sept. 18, 2006 — Jorge Julio Lopez, a key witness in the Etchecolatz case, disappears near his house in the city of La Plata. He remains missing.
Sept. 19, 2006 — Etchecolatz is sentenced to life in prison.
Dec. 27, 2006 — Witness Luis Angel Gerez disappears near the capital of Buenos Aires.
Dec. 29, 2006 — Gerez is found beaten but alive a day after then-President Nestor Kirchner demands his release on national television.
Dec. 10, 2007 — Former Coast Guard officer Hector Febres is found poisoned to death in the Coast Guard facility where he was being held in the city of Tigre. He was to hear his verdict four days later on charges of torturing and kidnapping four prisoners.
Feb. 25, 2008 — Police find the body of retired army Lt. Col. Paul Alberto Navone in the town of Ascochinga. He'd been called to testify the following week about the abduction of twins born to a prisoner. Police say Navone committed suicide.
