Sadiq Khan on X: "PC Keith Palmer was tragically killed whilst doing his duty - protecting our city and democracy from those who want to destroy our way of life. He ran
![PC Keith Palmer: Final photo of Parliament policeman murdered in London terror attack | The Independent | The Independent PC Keith Palmer: Final photo of Parliament policeman murdered in London terror attack | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2017/03/24/09/keith-palmer.jpg?width=1200)
PC Keith Palmer: Final photo of Parliament policeman murdered in London terror attack | The Independent | The Independent
![Death of Pc Keith Palmer in Westminster attack 'haunts' MP who tended to him | Chester and District Standard Death of Pc Keith Palmer in Westminster attack 'haunts' MP who tended to him | Chester and District Standard](https://image.assets.pressassociation.io/v2/image/production/9e94866eaf741c9cd1fa257b8cd240ecY29udGVudHNlYXJjaCwxNTIxNDY2NTYw/2.30642703.jpg?w=640)
Death of Pc Keith Palmer in Westminster attack 'haunts' MP who tended to him | Chester and District Standard
![Memorial unveiled for 'true hero' PC Keith Palmer who died in Westminster terror attack | UK News | Sky News Memorial unveiled for 'true hero' PC Keith Palmer who died in Westminster terror attack | UK News | Sky News](https://e3.365dm.com/19/02/1600x900/skynews-westminster-keith-palmer_4584381.jpg?20190220193948)
Memorial unveiled for 'true hero' PC Keith Palmer who died in Westminster terror attack | UK News | Sky News
![Heroic MP who tried in vain to save stabbed officer had been touched by terrorism before | South China Morning Post Heroic MP who tried in vain to save stabbed officer had been touched by terrorism before | South China Morning Post](https://cdn.i-scmp.com/sites/default/files/styles/768x768/public/images/methode/2017/03/23/2daacbc8-0f64-11e7-9af0-a8525e4e6af4_1280x720.jpg?itok=mIYqVBBf)
Heroic MP who tried in vain to save stabbed officer had been touched by terrorism before | South China Morning Post
![Why was PC Keith Palmer left so vulnerable? Damning dossier provides disturbing clues | Daily Mail Online Why was PC Keith Palmer left so vulnerable? Damning dossier provides disturbing clues | Daily Mail Online](https://i.dailymail.co.uk/1s/2020/05/01/22/27902758-8279171-image-a-74_1588366805100.jpg)