The United States on Thursday condemned the killing of a local opposition leader in Venezuela days before the Latin American country's legislative election and called on the government there to protect all political candidates. Luis Diaz, a leader of the opposition Democratic Action party in Guarico state in Venezuela, was shot at a public meeting on Wednesday night. 'This was the deadliest of several recent attacks and acts of intimidation aimed at opposition candidates,' US State Department spokesman John Kirby said in a statement. 'Campaigns of fear, violence, and intimidation have no place in democracy.'