Ghost easily finds the power provider... there being only one in the area.  Hacking into their network takes a minute.  He isolates the block first, then finds the specific building shut off a minute later.  However shutting down power to the entire building was possible, but not to just one floor from outside the building's own control systems or engineering room.<br/><br/><div class="spoiler_container"><div class="spoiler_header" onclick="hideSecond (this);" role="button">OOC</div><div class="spoiler_body">Does he turn off the building's power?  Does he still have the robot slice through the window?  It does have hinges on top, so there's that.<br/><br/>Also, while American Star does not have the ability to see invisible objects, Ghost's Drones don't have the ability to see through walls, so they can't see American Star in an Elevator, in an Elevator shaft.<br/></div></div>