By Kithmi Gunaratne
Can justice ever justify killing?
It is a question that unsettles the conscience of any society that claims to value human life. Yet in countries where the death penalty remains, the answer is delivered not in words, but in action. In the name of justice, the state assumes the ultimate authority – to decide that a life should end. It is a power that sits uneasily within modern democracies, not because it is rare, but because it reveals a deeper contradiction: a system that claims to uphold the value of life while deliberately extinguishing it.
At the heart of this contradiction lies a simple philosophical truth. As Immanuel Kant argued, human beings must always be treated as ends in themselves, never merely as means. This principle does not dissolve when a person commits a crime, however grave. To execute someone is to transform them into an instrument – of deterrence, of retribution, of political messaging. It reduces a human life to a symbol. In that moment, justice does not affirm dignity. It risks abandoning it.
This is not to deny that crime demands punishment. It must. A just society has an obligation to hold individuals accountable, to protect the innocent, and to respond firmly to wrongdoing. Serious crimes require serious consequences. But punishment and killing are not the same. Justice can be resolute without being destructive. It can be severe without becoming irreversible.
Life imprisonment without parole is one such example. It removes dangerous individuals from society, ensures they cannot harm again, and affirms the seriousness of their crimes. But it does so without crossing a moral line that cannot be undone. It preserves the distinction between justice and vengeance – a distinction that is essential if the law is to remain principled rather than reactive.
Supporters of capital punishment often frame it as the ultimate form of justice. Those who take a life, they argue, forfeit their own. It is an argument rooted in retribution, and it carries undeniable emotional weight. For victims and their families, the desire for accountability is not abstract. It is urgent, painful, and deeply human. But justice cannot be built on emotion alone. A system that mirrors the violence it condemns risks becoming indistinguishable from it. Punishment, if it is to be just, must be governed by principles that rise above instinct – not ones that reflect it.
Modern human rights frameworks reflect this shift. The Universal Declaration of Human Rights affirms that all human beings are born free and equal in dignity and rights. The language is deliberate. Dignity is not conditional. It does not depend on innocence, nor is it erased by guilt. The death penalty challenges this foundation by asserting that some lives can be stripped of their value entirely.
Even setting aside the moral argument, the practical realities are difficult to ignore.
No legal system is flawless. Wrongful convictions are a documented reality in many jurisdictions, shaped by flawed evidence, systemic bias, or human error. When the punishment is imprisonment, there remains the possibility – however imperfect – of correction. When the punishment is death, that possibility disappears. The system demands certainty, but it operates within uncertainty. In that gap, irreversible injustice becomes not just possible, but inevitable.
There is also continuing debate around one of the death penalty’s most persistent justifications: deterrence. While the assumption that the threat of execution prevents crime is intuitively appealing, the evidence remains contested, with many studies finding limited or inconclusive impact. Countries that have abolished capital punishment have not descended into lawlessness. Many maintain lower rates of violent crime than those that continue to carry out executions.
What the death penalty ultimately reveals is not strength, but a failure to imagine justice differently. A just system does not need to take life to prove that it can punish. It does not need to extinguish life to affirm that life matters.
When the state exercises the power to take life, it does more than end an individual existence. It makes a statement – about power, about justice, and about the limits we are willing to set for ourselves in the face of harm.
Execution may promise closure. It may satisfy a desire for finality. But it cannot restore what was lost, nor can it cleanse the violence it enacts. It simply adds another irreversible act to the ledger – this time carried out in the name of all of us.
In the end, the question is not whether some crimes are unforgivable. It is whether justice must mirror them.
A society is defined not by the cruelty it condemns, but by the limits it refuses to cross. And if we allow the state to take life to prove that life matters, we risk forgetting the very principle we claim to defend.
Because once justice learns to kill, it is no longer justice alone that is on trial.
It is our humanity.
(Kithmi Gunaratne is a published poet and a student of International Relations)
