Genesis understands exactly what her husband is doing as he cuts off the ambulance from the roadside. Ronan knows she is watching. He knows she knows. What he believes—with complete certainty—is that the person dying in the back of that vehicle is her mother, which makes his choice a statement he doesn't feel the need to explain. He holds eye contact and lets it happen.
At the funeral, that certainty dissolves. The deceased is not her mother. It is his. Ronan's arrogant confidence survives almost every humiliation in a person's life, but not this one—not the specific, public collapse of a plan executed perfectly against the wrong target. What Genesis does next, and how she carries the knowledge of what he was willing to do, is the question the series then has to answer.
