How did Renee Walker die on 24?

Renee Walker died on 24 as a result of being shot multiple times by an FBI sniper, hired by former Russian President Yuri Suvarov's daughter, Anya Suvarov. The sniper, a former member of the Russian military, was hired by Anya to kill Renee in order to protect her family from the knowledge that Yuri had been responsible for the assassination of former President David Palmer.

The sniper shot Renee multiple times in the chest and abdomen, causing fatal wounds. In the moments before her death, Renee spoke with Jack Bauer, revealing that she had been responsible for the death of his mentor, Christopher Henderson. She admitted that she had betrayed him and was about to be arrested for treason, and asked Jack to forgive her for her actions.

Jack attempted to save Renee, but he was too late, and she died from her injuries. Her death was a major blow to Jack and the rest of the 24 cast, as Renee had become an important and beloved figure throughout the show. Her death was a powerful reminder of the moral ambiguity of 24, and the difficult decisions that its characters were often forced to make.