Where is the Whisperman?

Hint 1 of 7:

According to Ms. Shoto, he's in subterrania under the Cygnus building.

Hint 2 of 7:

Outside of the Cygnus building, break off a piece of fence on the left side
of the screen.

Hint 3 of 7:

Pry up the manhole cover with it.

Hint 4 of 7:

Climb down.