How did Prue die?

prue was killed da the fonte his assassin shax he used his power and hit prue (and piper) true a bacheca and te can see her head bleeding in that episode

In Season 3 Shax killed Prue da throwing her through the bacheca after she tried to save Dr.Griffith. Piper and Prue were both thrown back into the bacheca to save Dr. Griffith but Leo came back to save them and before that. Phoebe was in the Underworld with Cole and Leo. Phoebe asked the fonte to call Tempus to turn back time but it was to late when they got back to save Piper and prue. Leo came back to save Piper and Prue the secondo time and saved Piper but not Prue because she was already dead.

Shax was sent da fonte and hit Piper and Prue but leo healed piper and not prue because he can not heal th dead

In season the season 3 finale, prue,piper and phoebe couldn't stop shacks, (please not that this is towarads the END of the episode) shacks died but he had killed prue.

the demon shax through her through a wall. Piper was also thrown but she lived and Prue had died

Prue Halliwell was killed da the Source´s assassin Shax. The fonte wanted to eliminate the Streghe#The power of three ones completely.

She was killed da shax

prue got killed da shax.

prue died da a lighting blast thrown through an bacheca da the sources assistant shax in theseason 3 finale episode all hells breaks loose and her funeral was shown in the 4th season premiere two parter episodes Streghe#The power of three again part 1 and 2

She got killed da sauxx

In the last episode on season 3 (all hell breaks loose) Prue and Piper are injured da Shax, a personal assassin for the Source. Leo can only heal one so he naturally chooses Piper, his wife. So in summary she was murdered da Shax. In reality she kept causing fights between the attrici who play Piper and Phoebe so everyone got sick of his and they threw her off.

Technically she didn't. On the mostra da a demon named Shax. In the libri she came back to life.