Ecuador election: assassination looms large as voters prepare to go to polls

Winner of Sunday's vote will face huge public demand to tackle violence after killing of candidate Fernando Villavicencio

The brazen assassination of a presidential candidate will hang heavy over Ecuadorian voters as they choose a new president this weekend, following the latest eruption of drug cartel violence in the once-peaceful nation.

The winner of Sunday's vote will face an overwhelming public demand for security - but may not have the budget or the political capital to overhaul failed crime-fighting policies and fund new ones.