In Sheep's Clothing

In Sheep's Clothing is a quest in Fallout 4.

Synopsis
Piper was right about Mayor McDonough being a synth. He has taken Geneva hostage and threatens to kill her and anyone else who gets in his way when he chooses to escape into the Commonwealth. The Sole Survivor has to ensure that the situation is defuses one way or another.

Walkthrough

 * 1) After completing the main story of the game, (institute ending may not work) enter Diamond City to find Danny Sullivan dying outside All Faiths Chapel.
 * 2) (Optional) Give Danny a stimpak to save his life.
 * 3) Go up to the Mayor's box.
 * 4) Press the button behind Geneva's desk to open the locked door.
 * 5) Confront McDonough in his office.
 * 6) Let him go.
 * 7) Convince him to turn himself in.
 * 8) Kill him.