Piero Corvetto

Piero Corvetto is not mentioned in the provided news articles. The articles focus on the Peruvian presidential elections, specifically the initial results and the leading candidates. These candidates include Rafael López Aliaga, an ultraconservative, Keiko Fujimori, a right-wing candidate, and Roberto Sanchez, a left-wing candidate. The articles discuss the close race for second place between López Aliaga and Sanchez and the delays in closing polling stations. Without any mention of Piero Corvetto, it's impossible to provide any information about his background, current relevance, or role in these events.