 Complete the following phrase:  Matthieu Prosper Avril born December 12, 1937 is a Haitian political figure who was President of Haiti from 1988 to 1990. A trusted member of François Duvaliers Presidential Guard and adviser to Jean-Claude Duvalier, Lt. Gen. Avril led the September 1988 Haitian coup détat against a transition military government installed after Jean-Claude Duvaliers 1986 overthrow. He was President until March 1990, in a period which according to Amnesty International was marred by serious human rights violations. He was arrested in 2001, but released in March 2004 after the 