Hershel's family was in pain from the get-go, with Hershel at first holding on to the hope that walkers could and would be eventually cured. But the killing of Hershel was probably the worst thing the Governor did. And now we have Beth gone the way of her father, leaving just Maggie as the last survivor.
Dawn had some kind of feelings for Beth. Her insistence on keeping Noah after the exchange had been successfully concluded only makes sense because Dawn was thinking Beth wouldn't want to leave without Noah, and would therefore stay with Dawn's group. Beth figured that out, but tragically, she was never a killer. Pushing someone who's attacking you down an elevator shaft does not really make you a killer. And so Beth's stabbing Dawn didn't do the job, if the job Beth wanted to do was kill Dawn. And so Beth was the one who was killed - by Dawn - leaving it to Daryl to kill Dawn.
That was also a highly significant move for Daryl, who had become more reasonable and less reactive of late, being a moderating influence on Rick of all people, who had become more aggressive, as we saw again tonight. So the death of Beth closes the book not only on her innocence, but maybe the dawn of Daryl's as well.
In the end, as shocking as Beth's death was, it wasn't as palpably traumatic as Lori's, Shane's, or, again, Hershel's. That's because Beth had an innocence that was always a little too much for this wicked, bloody world. Her loss makes sense in that sense, but will rob The Walking Dead of a rare, gentle, and tough character.
And see also The Walking Dead 4.1: The New Plague ... The Walking Dead 4.2: The Baby and the Flu ... The Walking Dead 4.3: Death in Every Corner ...The Walking Dead 4.4: Hershel, Carl, and Maggie ... The Walking Dead 4.6: The Good Governor ... The Walking Dead 4.7: The Governor's Other Foot ... The Walking Dead 4.8: Vintage Fall Finale ... The Walking Dead 4.9: A Nightmare on Walking Dead Street ... The Walking Dead 4:14: Too Far ... The Walking Dead Season 4 Finale: From the Gunfire into the Frying Pan
And see also The Walking Dead Back on AMC ... The Walking Dead 2.2: The Nature of Vet ... The Walking Dead 2.3: Shane and Otis ... The Walking Dead 2.4: What Happened at the Pharmacy ... The Walking Dead 2.6: Secrets Told ... The Walking Dead 2.7: Rick's Way vs. Shane's Way ... The Walking Dead 2.8: The Farm, the Road, and the Town ... The Walking Dead 2.9: Worse than Walkers ... The Walking Dead 2.11: Young Calling the Shots ... The Walking Dead 2.12: Walkers Without Bites ... The Walking Dead Season 2 Finale