Stay of Execution achievement in Dishonored 2

How to unlock the Stay of Execution achievement in Dishonored 2: Stop the Grand Guard from pushing someone into the Wall of Light

I can't find the remaining 500 coins in the mission A stay of execution for Lizzy. : r/dishonored

Dishonored 2 Achievement Guide & Road Map

In Good Conscience achievement in Dishonored 2

Dishonored 2's achievement list released

Dishonored 2 walkthrough level 2: Edge of the World - Polygon

Guide :: Dishonored 2 - Complete Achievement guide - Steam Community

Dishonored 2 Guide/Walkthrough - Achievement Checklist

Steam Community :: Guide :: Dishonored 2 - Complete Achievement guide

Edge of the World - Dishonored 2 Walkthrough - Neoseeker