Smo - // Thanks guys - I never knew that! //
A little more background - Spector was known to be a serious gun nut - instances of him threatening musicians in recording studios, including John Lennon and Leonard Cohen, are well documented, and he frequently waved guns at house guests, occasionally letting off shots randomly to intimidate people.
He was also known for a pathological dislike of people leaving his presence before he wished them to leave, which often resulted in more gunplay.
It may be this situation that caused the tragic death of Ms Clarkson, but obviously only they know what actually happened that night, and Mr Spector was probably too unreliable for a genuine account due to constant drug and alcohol abuse.