From The Telegraph (paywall warning*): Scotland Yard deputy commissioner tells inquest he locked himself in a car as he watched Westminster terrorist stab colleague.
[Sir Craig Mackey] locked himself in his car as he watched terrorist Khalid Masood kill one of his colleagues in Westminster because he had “no protective equipment and no radio,” he has told an inquest.
I should note that Sir Mackey is not a knight of the garter belt. The chivalrous Order of the Garter is the highest level of chivalry and Sir Mackey is of the lowest rank of knighthood, Knight Bachelor.
An article from The Telegraph titled No armed officers present to protect murdered PC during Westminster terror attack, inquest hears sheds more light on the incident. An officer armed only with CS spray (tear gas) was bravely running toward the murderer, when the armed bodyguard of a powerful man intervened and killed the terrorist:
“The attacker was walking towards me. He had the knives in his hands. I had a moment at that time I have never been able to remember from when he was walking towards me. I still have no recollection of it.”
Referring to what he has since seen on CCTV footage, PC Ross added: “I have run to the gate, then stopped, turned around, then (I was) running at the suspect with some kind of plan in my head to try and tackle him before he got anyone else.”
Seconds later, Masood was shot dead by a plainclothes officer – understood to be the then Defence Secretary Michael Fallon’s personal bodyguard.
*Here is an article on the same topic from the BBC without a paywall.