Z/X: Code Reunion (2019)

S2E23 His Brother's Keeper

At a racetrack undergoing renovations, a construction foreman is killed, and his remains are concealed within a pillar. Several weeks later, Banks joins friends for the racetrack’s grand opening, while Ellison is at a police fundraiser in the turf club. During the event, one of Banks' companions is suddenly shoved from the rooftop, plummeting to his death in an incident that attendees initially perceive as a suicide.