The Nebula system was connected with all the drones and the live footage of the cameras was available to him at all times.
Luke watched in amazement as the several dragonflies flew out the window in response to Zach's hand signals. He wondered if Zach was secretly a tamer as well. It was hard for him to understand that the dragonflies weren't actually beasts that Zach had tamed.
Since Luke didn't ask Zach about them, he felt no need to answer him. Instead he put all his focus on the vision of the dragonflies that was available to him at all times.
The reason he had done this was that the suspicion for the successive incidents that harmed the Windsor family were somehow or the other linked to the Hunter family. As such, in order to look for more clues, there were no better people than the ones orchestrating the entire strategy behind the scenes.
