FLASHBACKHis story at Brookfield is told through flashback memories, as he dozes as an old codger in front of a fire at Mrs.Hackenbush is reluctant to stay when he hears there are financial difficulties, but pauses when Mrs.Upjohn reassures him ("I""ll take care of your salary").Hackenbush quips: "The last job I had, I had to take it out in trade.And this is no butcher shop.Not yet, anyhow." He also describes his education, medical background and experience - prefaced by bragging: "I""ve got the most peculiar talents of any doctor you ever met.Trust me." She pondered the idea and then accepted, knowing the danger of joining his cause: "I can show you the way...Guidance she needs and guidance she""ll get or I ain""t been the Sin Killer from here to El Paso for thirty years.Personnel Officer: Will ya work Jewish holidays?Bickle: Any time, anywhere.He offers only a few biographical facts about his background - he is a twenty-six year old ex-Marine [Travis is possibly a battle-scarred Vietnam Vet, but not specifically identified as such.