John Sudarsky

(born February 19, 1947) is a Colombian businessman, industrial engineer, psychologist, and teacher. As a member of the Alianza Verde Party, Sudarsky served as a senator from 2010 to 2014. Along with Angela Maria Robledo, he formed a faction within his party that opposed the alliance between the party and former President Álvaro Uribe.

He is currently president of the Corporation for Social Control (Contrial), which he founded in 2013. Provided by Wikipedia