What turned Snape (Was: JKR site update SPOILERS)

[pippin_999]

No: HPFGUIDX 158948

Carol:
> Voldemort's reasons for not killing Lily, OTOH, are clearly accounted
> for. In the first place, unlike James, she wasn't fighting him and he
> had no reason to kill her.

Pippin:
She'd defied him three times, she'd mothered one prophecy child, and 
could  conceivably (no pun intended)  have had more.

If he didn't want her dead because it would interfere with his plans
in any way, she could have been stunned, frozen, or
pushed out of the way. IMO,  he didn't expect her to stand aside; 
after all, she'd already defied him three times. But it's like the 
graveyard; he had a little game to play. I think he was being cruel
to the DE who wanted her alive, to punish him for daring to 
bargain with his master. It was a sincere offer, in a way,  ie he 
would have spared her if she'd stepped aside. But he knew 
she wouldn't, just as he knew Harry would come for Sirius. 


Snape is the obvious person to have proposed such a bargain, 
so I think he's the red herring. I agree that he has an important 
role in the books, but IMO it's Helper In Disguise, not reluctant
Agent of Evil.

Pippin