<P> Rachel begins trusting her own memories more , and realises that many of the crazy things Tom told her she did while drunk never really happened . He had been gaslighting her for years , which made her question her sanity . Armed with this sad realisation , and the knowledge that he must have been the one who killed Megan , Rachel warns Anna . When Anna confronts him , Tom confesses to murdering Megan after she threatened to reveal that he had gotten her pregnant . Anna is cowed , fearing for her daughter 's safety . Tom tries to beat and intimidate Rachel into keeping silent but she defies him and fights back . Knowing he is about to kill her , Rachel stabs Tom in the neck with a corkscrew . Anna helps Rachel make sure that he dies from the wound . When the police arrive , former adversaries Rachel and Anna support each other by co-ordinating their stories to explain their actions as self - defence . </P>
<P> Rachel begins trusting her own memories more , and realises that many of the crazy things Tom told her she did while drunk never really happened . He had been gaslighting her for years , which made her question her sanity . Armed with this sad realisation , and the knowledge that he must have been the one who killed Megan , Rachel warns Anna . When Anna confronts him , Tom confesses to murdering Megan after she threatened to reveal that he had gotten her pregnant . Anna is cowed , fearing for her daughter 's safety . Tom tries to beat and intimidate Rachel into keeping silent but she defies him and fights back . Knowing he is about to kill her , Rachel stabs Tom in the neck with a corkscrew . Anna helps Rachel make sure that he dies from the wound . When the police arrive , former adversaries Rachel and Anna support each other by co-ordinating their stories to explain their actions as self - defence . </P>
who is the killer on the girl on the train
who is the killer on the girl on the train
Tom
Tom