Thomson ReutersFebruary 5, 2013 01:00
* Man breaks through pro-government rally, stabs people
* Video of the attack is spine-chilling, says President Correa
* Correa favorite to win Feb. 17 election, polls say (Adds background, byline)
By Eduardo Garcia
QUITO, Feb 4 (Reuters) - Two supporters of Ecuador's president Rafael Correa were killed on Monday and four more suffered stab wounds during a campaign rally almost two weeks before a presidential election that the leftist leader is expected to win comfortably.