Why Did Bishop Leave ‘The Equalizer’? Here’s Why the Show Wrote Him off

In “Pulse,” viewers learn that William Bishop has been away working on a case in Europe all of this time. However, trouble arises when Mason Quinn (Chris Vance), an enemy of Robyn McCall’s, returns to the scene.

Unexpectedly, Mason Quinn decides not to target Robyn just yet. Instead, he gets rid of William by orchestrating a plane crash in which William, and everyone else on board, are presumed dead.

Source: https://www.distractify.com/p/why-did-bishop-leave-the-equalizer