Another possible reason Snape killed DD

[gailelisabeth]

No: HPFGUIDX 135246

I have been searching the messages, and haven't found this theory put 
forward -- forgive me if I've missed it.

Several posters have pointed out how odd it is that DD pleads with 
Snape at the end (the implication being that he's pleading for his 
life.)  I agree that he may indeed be pleading for Snape to kill him -
- that would be much more in character.

But why? Here's my theory:  

Remember that DD insists Harry fetch Snape when he is ill from the 
potion, not Madame P. or anyone else.  Could it be that there is a 
secret only he and Snape share?

Keep in mind how strongly DD insists that Harry obey him without 
question on their outing to the cave, even if it should mean leaving 
DD in danger.  What if he had extracted a similar promise from Snape?

What if the potion DD drank had put the horocrux into him, DD? When 
he said "Kill me" in his stupor, it was because he knew this?  And 
that Snape killed him because it was the only way to kill the 
horocrux?


Gail