yes she did
Voldemort ordered his snake, Nagini, to kill Severus Snape.
=Voldemort Orders Nagini To Kill Him=
No, Voldemort's pet Snake Nagini does.
It was Nagini, Voldermort's snake.
The snake, Nagini, was floating in a protective shield in the room at the Shrieking Shack that Voldemort and Snape were in. Since Voldemort believe that Snape alone held the power to wield the Elder Wand since he killed Dumbledore, he broke the protective charm around Nagini and sent her lunging for Snape. Nagini bit Snape on the neck, causing him to bleed to death.
Yes. Well, actually, technically, Nagini (Voldemort's giant snake) killed Snape. But Voldemort told the snake to do it.
He wants to kill him so he could be the "master of the elder wand" (except for the fact that Snape was not ever the master of the elder wand....)
No, he had his snake Nagini poison him.
Voldemort made Nagini attack him.
Voldemor's familiar, Nagini.
Severus Snape is murdered by Voldermort (his snake, Nagini, actually), when he thinks Snape is the true owner of the Elder Wand. He shows Harry in his last moments all of his most percious memories.
Voldemort, obsessed with becoming the master of the Elder Wand, ordered Nagini, his serpent, to kill Snape who he (Voldemort) thought was the master of the wand. Because the Elder Wand gives his allegiance to the one who killed its master, Voldemort thought he had to kill Snape to become the true master.