We, the undersigned, call for justice in the case of Tyler Robinson, but oppose the use of the death penalty against him.

At 22 years old, Robinson is legally an adult, but modern neuroscience and international human-rights standards tell us that young adults are still developing key parts of their brains — especially the frontal lobes responsible for judgment, impulse control, and moral reasoning. Many experts consider full neurological maturity to arrive closer to ages 24–27.

Executing someone this young does not take into account the realities of human development, nor the fact that severe mental health issues and early-life circumstances often shape tragic outcomes.  Robinson's mother has already revealed that Tyler was suicidal and placed in a padded vest to prevent him from harming himself. This underscores that this case is not just about punishment but about addressing deeper failures in prevention and treatment.

Justice demands accountability — and Robinson must be held fully responsible for his actions. However, true justice does not require killing a 22-year-old. Life imprisonment, with mandated psychological evaluation and treatment, is a more humane and constructive outcome.

The United States is already out of step with most of the world, where the death penalty is abolished or reserved for only the gravest, most exceptional cases. Executing someone barely out of adolescence is viewed internationally as a violation of human rights.

We urge prosecutors, the court, and the governor’s office to seek justice that prioritizes fairness, public safety, and humanity:

Sentence Robinson to life imprisonment without the possibility for parole until after 25 years, rather than death.

Ensure full mental health assessment and appropriate treatment.

Provide resources to victims’ families for healing and support.

Invest in prevention programs so tragedies like this never happen again.

This case is a tragedy with irreversible harm for all involved. The victims and their families deserve justice. But justice that takes another young life only compounds the tragedy.

We petition: No death penalty for Tyler Robinson; instead we request justice through accountability, mercy, and prevention.