Meet Justice Diana Kavedza-Mochache, who delivered landmark ruling against Paul Mackenzie

There are days when a courtroom stops being a room. It becomes a nation's conscience.

That day was Friday, November 6, 2026, in Mombasa. A woman in a black robe stood where history was waiting. She did not shout. She did not tremble. She read, slowly, firmly, page after page, as if each name of the dead deserved to be heard properly.

Her name is Lady Justice Diana Rachel Kavedza-Mochache.

When she finished, Paul Nthenge Mackenzie, the self-proclaimed preacher of Good News International Ministries, was sentenced to 200 years in prison, 100 years for murder by starvation and 100 years for direct homicide, to run consecutively. His 28 co-accused received sentences ranging from 10 to 160 years.

It was the end of a trial that had begun in horror. In April 2023, Kenya began digging up shallow graves in Shakahola Forest in Kilifi County. By the end, 448 bodies had been recovered, according to the Kenya National Commission on Human Rights. The trial itself covered 191 victims, 190 children and one adult, who died between January 2021 and September 2023.

Mackenzie had said they fasted willingly. To meet Jesus. To escape the end of the world.

Justice Kavedza looked at the evidence, looked at the law, and said no.

"I am satisfied that the prosecution has proved the case against all the 29 accused persons for the murder of 190 children and one adult, contrary to section 203 of the Penal Code," she said on October 19, 2026, when she delivered the conviction.

"I reject the defence by the accused persons that the victims, who were all below the age of 16 years, voluntarily fasted to death."

She found that 183 died from starvation, and eight children died from direct homicide, including suffocation, strangulation and blunt force trauma. She found that the fasting was not voluntary. It was enforced through an organised system of indoctrination, intimidation and violence. Children were targeted first. Then women. Then men.

She called Mackenzie's Good News International Ministries what it was: a cult. An apocalyptic, doomsday cult. She dismantled, with scholarship and patience, even his misuse of scripture, including the Books of Maccabees, which she found were not divinely inspired scriptures to justify killing children.

And in that moment, I remembered Chinua Achebe in No Longer at Ease: "God's case has no appeal."

Yes, Mackenzie's lawyers have said they will appeal. In man's court, there is always an appeal. But in God's court, in the court of history, in the court of the mothers who will never bury their children properly, there is no appeal against truth. When a judge speaks the truth with courage, the verdict outlives the appeal.

That is the power of law.

A judicial career built over three decades

She did not fall from heaven into that chair. She climbed, rung by rung, for more than thirty years.

Justice Diana Rachel Kavedza-Mochache joined the judicial service in 1993 as a District Magistrate II (Professional) and rose through the ranks to become Chief Magistrate before her elevation to the High Court in 2022.

She holds a Bachelor of Laws and a Master of Laws from the University of Nairobi, a Postgraduate Diploma from the Kenya School of Law, and was admitted to the Bar in 1991. She also holds a Certificate in Crisis Leadership from Rosewell Academy in the United States and a Certificate in Strategic Leadership from the Kenya School of Government.

But her biography is not just paper. It is battle-tested.

She is credited with establishing counter-terrorism courts in Kenya. She was the pioneer Head of Station at Shanzu CT Court within Shimo La Tewa Prison and the first Head of Station at Kahawa CT Court within Kamiti Maximum Prison.

At Kahawa, she handled the trial of suspects in the Dusit D2 Hotel attack of January 15, 2019, where 21 people were killed, and sentenced two men who aided the terrorists to 30 years in jail.

She has served at the Milimani High Court Criminal Division and as Presiding Judge of Kibera High Court, the first High Court within Africa's largest slum. She has chaired the National Community Service Orders Committee and the Business Premises Rent Tribunal.

Those who have sat in her court say you cannot get bored there. She cracks jokes, quotes the Bible, refers you to the Constitution, sometimes in the same breath. And yet, she is always in charge. Behind the humour and courtesy, they say, is a judge who can be uncompromising when circumstances demand it.

At times, she has reached into her own pocket to buy milk, soda and bread for suspects or accused persons.

That is the paradox that makes her great: warmth and firmness in the same hand. Humanity and law in the same heart.

This is where I want to speak directly to the young men and women now studying law in Nairobi, Mombasa, Kisii, Eldoret and every university where the dream is still fresh.

Do not study law only for money.

Money will come, and money will go. Clients will pay you, and clients will leave you. But a reputation built on sound judicial knowledge, on mastery of evidence, on patience with a 1,000-page judgment, on the ability to sit for many days and hear more than 100 witnesses and still keep your mind clear, that reputation will outlive you.

Diana Kavedza did not become a great judge in one day in Mombasa. She became a great judge in 1993, in small magistrates' courts no camera visited. She became a great judge when she chose to build counter-terrorism courts inside prisons, where few wanted to go. She became a great judge when she learnt to distinguish between starvation murder and direct homicide, between radicalisation and religion, between voluntary fasting and coerced death.

That is sound judicial knowledge. It is not cramming sections. It is understanding that Section 203 of the Penal Code is not just ink on paper. It is the life of a child in Shakahola who could not choose.

Modern law students must embrace law as a calling, not as a hustle.

Learn the Constitution by heart, but also learn the Bible, learn history, learn theology, learn psychology, learn how cults work, learn how poverty makes people vulnerable, learn how a preacher can twist a verse to kill.

Kavedza had to do all that to judge Mackenzie. She did not just apply the law. She understood the human being behind the law.

Learn to be bold. Mackenzie was feared. He had followers who would die for him. He had a system. He had money from followers who sold their property. It would have been easier for a timid judge to delay, to dilute, to find technicalities. Kavedza chose to be bold.

Learn to be humane. A judge who buys bread for an accused person is not weak. She is showing that justice is not revenge.

She refused the death penalty for Mackenzie, observing that death could be perceived differently by people whose beliefs regarded death as a pathway to heaven.

That is not softness. That is wisdom. That is a judge who understands the mind she is judging.

Learn that your first client is justice, not your wallet.

If you chase money first, you will defend Mackenzie for money. You will draft agreements for land grabbers for money. You will delay cases for money. You will become rich and empty.

If you chase knowledge first, if you chase integrity first, if you chase courage first, money will follow you as a by-product, and history will remember you as a builder.

In No Longer at Ease, Achebe was talking about a different kind of judgment. The judgment that comes when a man has traded his soul and discovers too late that no lawyer can argue him out of it.

Mackenzie may appeal to the Court of Appeal. He may seek further appeal to the Supreme Court, subject to the law. That is his constitutional right, and a good judiciary must protect even the rights of the guilty.

But there is a higher court, the court of the 190 children. In that court, Diana Kavedza has already spoken. She has written their names into law. She has told Kenya: these children did not choose to die. They were killed.

And no appeal can undo that truth.

That is why, today, we do not just celebrate a sentence of 200 years. We celebrate a judge who reminded Kenya what the law is for. Not for the rich. Not for the powerful. Not for the preacher with a microphone. But for the child in the forest who had no microphone, no lawyer, no voice.

Kavedza gave them a voice.

To every law student reading this: be like her. Study hard. Stay honest. Stay human. Stay bold. Let your law be sound, and let your heart be sound too.

For in the end, when all the files are closed and all the fees are spent, only one question will remain: Did you use the law to protect the voiceless?

And God's case has no appeal.