In The Equalizer, when McCall visits Plummer's house, Brian Plummer says;
-You had a nice funeral, in case you were wondering.
Why McCall's death was faked? Even Susan didn't know it, What was McCall's past? Why he lived so quietly? And if he had such incredible skills, intelligence and knowledge then why didn't he use it for a bigger cause? (I know he made promise with his dying wife, but still he made exceptions) Can someone help me on this?