Did Severus Murder

[Carol]

No: HPFGUIDX 183192

Carol earlier:
> 
> > But, as you say, we have no canonical evidence and no evidence
from interviews that Snape ever killed anybody. I doubt that he'd be
so concerned about the state of his soul after killing DD had he done  so.
> > And DD asks him how many people he's watched die, not how many
people he has killed.
> 
Jack-A-Roe responded:
> I read the scene with Dumbledore and Snape differently. 
> 
> "If you don't mind dying," said Snape roughly, why not let Draco do it?"
> 
> "That boy's soul is not yet so damaged," said Dumbledore. "I would 
not have it ripped apart on my account."
> 
> "And my soul, Dumbledore? Mine?"
> 
> "You alone know whether it will harm your sould to help an old man
avoid pain and humiliation," said Dumbledore.
> 
> then
> 
> His tone was light, but his blue eyes pierced Snape as they had 
> frequently pierced Harry, as though the soul they discussed was 
> visible to him. At last Snape gave a another curt nod.
> 
> I read it as if Dumbledore knows that Snape has damaged his soul and
that helping him along will not damage it any further than it already
has been damaged. The phrasing of "pierced" brings to mind something 
being damaged. The fact that it is used twice before the word soul led
me to inerpret the scene that Dumbledore knew about Snapes past.

Carol:
If that's the case, Harry's soul is damaged, too, since the narrator
says, "his blue eyes pierced Snape as they had frequently pierced
Harry." (It's used twice because one reference is to Snape and the
other to Harry.)
> 
Jack-a-Roe:
> If you read the scene another way and determine that he somehow 
> joined the deatheaters and rose through their ranks without 
> committing murder doesn't that fact that he belongs to a terrorist 
> organization that uses murder as one of its tools make him an 
> accessory to the murders?
>
Carol responds:
*Of course*, he was "a tool and accessory to the murders" committed by
the terrorist organization he had joined, particularly if he concocted
poisons that he knew would be used to murder people. But that is
different from commiting the murders himself, which we have no
evidence that he did. The only Killing Curse--and, for that matter,
the only Unforgiveable Curse of any description--that we ever see
Snape cast is the one that kills Dumbledore on Dumbledore's orders.

Speculate all you like. I'm simply saying that *canon* gives us no
indication that Snape ever killed anyone besides Dumbledore, and some
indication (his concern for his soul and the mention of people that he
has *seen* die as opposed to killed) that he did not.

As for the piercing blue eyes, they pierce Harry as well as Snape, as
Harry is remembering in this scene. (My guess is that DD is using
Legilimency at those moments. I don't think that Snape would use
Occlumency against Dumbledore, who already knows Snape's worst sin or
crime, revealing the partial Prophecy to Voldemort.)

Carol, who still thinks that Snape would not be concerned about a torn
soul if his soul were torn (as opposed to tarnished) already