They must've been exposed.
Owen's voice and the others distracted him through the communication device.
"Team B, guard the door. Don't let anyone escape our encirclement!" Owen's voice came through the public channel.
"Yes, sir!"
"Team D is in the kitchen, with two armed men inside. Take them down, but be careful!"
"Team C, assist Team E on the second floor!"
"Team A!? Report your status?"
"Five rooms cleared. Three rooms left..." Reid answered Owen when he saw that his team had already given him a clear sign after they had captured their target.
Reid kicked open the door in a split second, but to his surprise, the bedroom was dark and empty.
He hurriedly checked the room, gun in hand, prepared to shoot anyone inside.
However, he stopped in his tracks when he saw the perfectly made bed with no signs of anyone using it.