When Simon points out that Poirot has no proof, Poirot reveals that the police will just do gunshot residue test known for moulage test on both him and Jacqueline; realizing 33387 they are caught, Jacqueline confesses before embracing Simon; poiroct realizes suddenly she took back her pistol, but is unable to prevent she had killed Simon in the head before killing.
When Simon points out that Poirot has no proof, Poirot reveals that the police will simply do a gunshot residue test known as a moulage test on both him and Jacqueline. Realizing they are caught, Jacqueline confesses before embracing Simon. Poirot suddenly realizes she has taken back her pistol, but is unable to prevent her from shooting Simon in the head before killing herself.