Operation: KNIGHTFALL

Operation: KNIGHTFALL was an attack on the Jedi Temple on Coruscant led by Darth Vader at the start of the Great Jedi Purge. After the deaths of Saesee Tiin, Kit Fisto and Mace Windu at the hands of Darth Sidious, The Sith Master and his newly-appointed apprentice executed Order 66, an order to all the Clone Troopers to murder their Jedi Generals, which led to a Galaxy-wide massacre of all Jedi in the field.

Meanwhile, however, Sidious made a point of the fact that there were still many Jedi left alive in the Temple, so Vader assaulted the stronghold with an army of Clones and butchered the Jedi inside leaving very few survivours. With the element of suprise on their side, the Clones cut through the initial batch of Jedi in the main hall and were able to overpower most of the Jedi in the Library.

Vader murdered hundreds of Jedi, even younglings, and very few Jedi were able to escape the temple. Shaak Ti was able to escape with her life, and so were a few clans of Jedi who were nearer to the lower floors. Once the massacre was complete, The Clones set up a coded signal so that all remaining Jedi would return to the Jedi Temple and fall into a trap, so Yoda and Obi-Wan Kenobi broke into the Temple and reversed the coded signal. It was here that they realised that Anakin had become Darth Vader and they made their plans to attack him.