Open the door halfway so that you have access to both sides of the door. This also helps prevent locking yourself inside the room by accident.
Remove the set screw securing the inner door knob to the spindle, using a hex wrench. The set screw points to the floor under the neck of the door knob. Pull the door knob away from the escutcheon plate.
Rotate the thumb handle for the deadbolt counterclockwise to fully extend the deadbolt.
Turn the screws securing the escutcheon plate to the mounting plate counterclockwise, using a Phillips screwdriver. Pull the escutcheon plate straight off the door. The deadbolt thumb handle stays on the escutcheon plate.