the faa investigating a close call at chicago's midway airport. a southwest jet had been cleared for takeoff, began rolling down the runway at the same time an air traffic controller noticed a delta jet beginning to take off from an intersecting runway without permission. the controller yelled for the delta plane to stop. a collision was narrowly avoided. in earlier air traffic audio the controller tells the pilots they keep answering for each other, suggesting there was some type of confusion. now major developments in the search for those escapees in upstate new york. prosecutors have confirmed that the prison employee now under arrest plotted with two escapees to have her husband killed. they also said that joyce mitchell had a sexual relationship with one of the men. with more, here's abc's marci gonzalez. >> reporter: roadblocks reopened the search surrounding the prison scaled back. police saying after meticulously scouring this 16-square-mile area, there is no sign of the two convicted killers who