Ecuadorean presidential candidate Luisa Gonzalez, who has led polls ahead of a Sunday vote riven by the murder of one of her competitors, said on Tuesday she will use $2.5 billion from international reserves to shore up the struggling economy if elected. Anti-corruption candidate Fernando Villavicencio, a long-time antagonist of Gonzalez's mentor, former President Rafael Correa, was gunned down leaving an event in Quito last week, highlighting deteriorating security in the Andean country and prompting his erstwhile competitors to pledge to fight crime. Ecuador has leaned on internationa...