Sir David Amess’s daughter has accused Sir Keir Starmer of “point blank refusing” an inquiry into the murder of her father, four years after he was killed by a British Islamic State sympathiser at his constituency surgery.

Speaking to GB News, Katie Amess said the family’s calls for an inquiry have “fallen on deaf ears”, and they “still don’t have answers” as to why Ali Harbi Ali was able to murder the late MP.

In 2021, Sir David was murdered by Ali Harbi Ali during a constituency surgery in Leigh-on-Sea in Essex.

Marking the four-year anniversary of her father’s killing, Ms Amess told GB News that her family’s lives “are destroyed”, and she can “never be fully happy again”.

Ms Amess said: “It’s still so shocking to me, and it’s so hard to come to terms with and believe that this is actually what happened and that this is our reality now.

“We are just absolutely broken, our lives are destroyed. I feel like I can never be fully happy again knowing that this happened to my dad in such a shocking and horrific way.”

Outlining her repeated calls to Government to hold an inquiry into the murder of Sir David, Ms Amess said the Prime Minister is “refusing” to hold an investigation.

She explained: “Four years on, we still don’t have any answers as to why somebody that was known to the Government Prevent scheme and to the police was allowed to go back onto the street to commit this atrocity.

“I’ve been asking the Government for an inquiry to find out why they only had one meeting with the guy, and they didn’t have the other seven that were budgeted to find out if he was a terrorist. And so far, it’s fallen on deaf ears and Sir Keir is refusing to do an inquiry for us.”

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Comparing the case of her father’s murder to the Southport killings, Ms Amess claimed that the Government want her to “shut up an move on”.

She stated: “Southport happened and the Government did the right thing, they immediately launched an inquiry. But there is something in my father’s case that they do not want to see the light of day and they are point blank refusing. And when I ask, they have no answers to me.

“They just tell me that it’s a different case, and that I should be happy with a review that has been done. They just want me to go away and to shut up and to move on. But I’m not going to do that, because my dad was an amazing public servant.

“He was in the House of Commons for nearly 40 years, and he touched thousands of people’s lives, and these are his colleagues and his alleged friends, and they don’t want whatever it is that they know coming out.

“My whole family is just in despair. If this is how little the Government cares for the family of a murdered colleague, how little do they care for everybody else?”

Hitting out at the Government’s Prevent scheme, Ms Amess declared “nothing has changed” in regard to the threats politicians face to their safety.

She told GB News: “Prevent is absolutely rubbish, and nothing has changed. Any terrorist that is planning an attack must be loving watching my situation, that I’m not even allowed an inquiry as to why the Government’s scheme let him go. We aren’t reprimanding these people, we aren’t overhauling the system, we aren’t getting into the nuts and bolts of where we failed.

“We’re just brushing it over, sweeping it under the carpet and trying to move on to the next story. So it’s a huge failure, and we’re not even being allowed any answers as to who made the mistakes and why they made them.”

Delivering her verdict on her father’s killer, Ms Amess said Ali Harbi Ali is “pathetic”, and “God will decide” what happens to him in prison.

She concluded: “I don’t even think about him, he is so pathetic and irrelevant. He wanted to be seen as a hero and be hailed as this great warrior, but he attacked an unarmed 69-year-old man in the church. That is a wimp. That is not a warrior.

“He should have just gone to Syria and fought in the war if he thought he was so strong and powerful. So he will just die in prison, and I am deeply religious like my father was, and I believe that God will figure out what’s going to happen with him when he dies in prison. So I just focus on my dad and the love and the light and the positivity that he brought to this world.”

GB News has approached the Home Office for comment.