Dulles communications director Leslie Barnes heads to the unfinished Annex Skywalk with a SWAT team to re-establish communications with the planes. Stuart's henchmen ambush the group at a checkpoint, killing the SWAT team. With Marvin's help, McClane reaches the massacre scene, rescuing Barnes and killing Stuart's men. Stuart responds by recalibrating the instrument landing system and then impersonating air traffic controllers to crash a British jet, killing all 230 passengers and crew on board. A U.S. Army Special Forces team is called in, led by Major Grant. A two-way radio dropped by one of Stuart's henchmen tips McClane that Esperanza, who's killed his captors and is now flying, is landing.