Coldfire asks: Did one of the two sisters murder the other?
NO
Was the woman related to the two sisters?
NO
Was a crime commited?
NO
Did the death of one or both of the sisters have a medical cause?
YES (give me an example of a non-medical cause!)
Redwing asks: Was the accident auto related?
NO
Did the Woman cause the accident?
NOT REALLY.
Were the sisters fighting?
NO
aschrott asks: Did she defend herself?
YES
One of the sisters?
NO
Both of the sisters?
NO
SwimmingRiddles asks: Was this a lesbian, incestious streetfight?
uhh… NO
But if you’re having a cable-TV slumber party, I want an invitation. 
Was the woman defending herself from an unknown party?
Was there a difference in height between the woman and one of the two or both sisters at the time the woman had to defend herself?
Did the sister the woman killed cause the accident?
Letting my inner child run loose and break things.
was the accident in question the cause of the deaths?
if not, did the woman kill one of the sisters intentionally?
was her killing of one or both sisters a further accident, distinct from the first?
Were any of the women trapeze artists?
(And no fair, East Coasters. Up an hour before me and already cracking away.)
Battles are won in nuance.
SwimmingRiddles asks: Was the woman defending herself from an unknown party?
NO
Coldfire asks: Was there a difference in height between the woman and one of the two or both sisters at the time the woman had to defend herself?
NOT RELEVANT
Redwing asks: Did the sister the woman killed cause the accident?
NO
aschrott asks: was the accident in question the cause of the deaths?
NO
if not, did the woman kill one of the sisters intentionally?
NO
was her killing of one or both sisters a further accident, distinct from the first?
YES
Flypsyde asks: Were any of the women trapeze artists?
NO
(And no fair, East Coasters. Up an hour before me and already cracking away.)
YEAH, LIFE IS TOUGH
were the woman and the sisters in any way acquainted before the events in question?
aschrott asks: were the woman and the sisters in any way acquainted before the events in question?
NO
Was the woman fighting with one or both of the sisters?
SwimmingRiddles asks: Was the woman fighting with one or both of the sisters?
YES, IN A MANNER OF SPEAKING
Was the woman fighting with one or both sisters in a verbal manner?
Was the woman fighting with one or both sisters in a physical manner?
When the woman defended herself, was it against one or both of the sisters?
Was this defence in reaction to a phyisical threat?
Make that physical manner.
So far we know that
A.) there are three women involved.
B.) Two are sisters
C.) One is a woman who is unrelated to the sisers.
D.) At some point, there was an accident, which was “not really” caused by the woman.
E.) At some point, the woman defended herself, but not against a fourth person.
F.) At some point, there was a second accident,which directly resulted in the death of one sister and indirectly resulted in the death of the second.
Are any of these statements false?
SwimmingRiddles asks: Was the woman fighting with one or both sisters in a verbal manner?
IN A MANNER OF SPEAKING
Was the woman fighting with one or both sisters in a physical manner?
IN A MANNER OF SPEAKING
When the woman defended herself, was it against one or both of the sisters?
YES
TO SAVE BANDWIDTH – ONLY ONE OF THE SISTERS
Was this defence in reaction to a phyisical threat?
YES
So far we know that
A.) there are three women involved.
B.) Two are sisters
C.) One is a woman who is unrelated to the sisers.
D.) At some point, there was an accident, which was “not really” caused by the woman.
E.) At some point, the woman defended herself, but not against a fourth person.
F.) At some point, there was a second accident,which directly resulted in the death of one sister and indirectly resulted in the death of the second.
Are any of these statements false?
YES
AGAIN TO SAVE BANDWIDTH - F IS FALSE
So the second accident caused the death of both sisters at the same time?
Is the reason for the altercation relevant?
So the second accident caused the death of both sisters at the same time?
NO
Is the reason for the altercation relevant?
YES
did these events occur in a public place?
were any of the women involved unusual in some way that is relevant?
is the fact that the two victims were sisters relevent at all?
aschrott asks:
did these events occur in a public place?
IN A MANNER OF SPEAKING
were any of the women involved unusual in some way that is relevant?
YES!!!
is the fact that the two victims were sisters relevent at all?
YES
So the sisters died at separate times?