However, Blanc immediately solves the killer’s identity and motive before Miles is even finished explaining the game. But while having drinks, Duke immediately starts choking and dies.

The group is shocked, then, the lights go out. Everyone begins to panic, but the killer is not yet finished. Andi, who previously stormed out while having drinks after getting into a fight with Duke, is shot in the chest.

Source: https://www.distractify.com/p/knives-out-2-who-dies