Cartel violence is hollowing out Ecuador's largest city Guayaquil, scaring away tourists, pummelling the economy and leaving whoever wins Sunday's presidential election with a gargantuan problem. "There is a lot of crime. It used to be a bit quiet here, but now look how empty it is at this hour," says Juan Carlos Pesantes who has sold sweets and drinks from a park-side kiosk for 16 years. IMAGES AND SOUNDBITES