Wasn't her previous experience with a much fresher corpse? Isn't it possible/probable that he wasn't dead long enough to emit that unforgettable scent?

I know I'm about a year late to this party so if anyone is willing to indulge me here I'd be most grateful. I'm fine with spoilers, I totally deserve them at this late date. When sexy hubby Tom insisted he had an interview in Boston on the day some random former Soviet spy was murdered (assassinated?) he pointed to a…

That was one of the first things I noticed. It struck me as both obvious and cliche.
Also, has anyone mentioned the fleeting look of recognition -slash-fear on hubby's face when Spader sat beside him on the bench outside the hospital? Or the fact that the Nebraska cemetery looked exactly like one near White Plains, NY?