Monk famously wears night vision goggles in his apartment during the blackout, only to realize he can still see perfectly once the power comes back on.
The investigation leads Stottlemeyer and Monk to Alby Drake, a former associate of Brenner who is living in a tree as a protest. Drake is later killed when a bulldozer knocks the tree down during the night. [S3E3] The Blackout
The power goes out across half of San Francisco for a few minutes. While the power company suggests it was an accident, the police find a letter from a domestic terrorist named Winston Brenner, who supposedly died in a bomb blast years earlier. Monk famously wears night vision goggles in his