'Downton Abbey': Celebs tweet about last night's shocker

We're only 24 hours removed from last night's harrowing Downton Abbey (my review available here), and numerous celebrities have taken to Twitter to voice their discontent over the death of Lady Sybil.

I've only just gotten a Twitter (@RicanRhetoric), so I was kind of thrown by how my feed was blowing up with sad and angry rants in the aftermath of the episode, and well into today. While I imagine this is probably a byproduct of the somewhat random people I follow, the episode was undeniably powerful.

Here are some of the more notable tweets about last night's shocker:

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