The legal team representing Tyler Robinson, the alleged assassin of Turning Point USA founder Charlie Kirk, is reportedly focusing on efforts to spare him from the death penalty if he is convicted.

According to a report from the Daily Mail, Robinson’s defense team includes so-called “mercy investigators,” also known as mitigation specialists, who work on capital cases by gathering information about a defendant’s life and background. The goal is to present evidence that could persuade a jury to impose a sentence of life imprisonment rather than capital punishment.

Mitigation specialists typically examine a defendant’s life history, including mental health records, childhood trauma, family relationships, and other personal circumstances.

“While the work of a prosecutor is to show this defendant on the worst day of his life, the work of mitigation specialists is to show jurors all the other days – not to excuse their conduct, but to help jurors understand it and see that he is human just like the rest of us,” Corinna Barrett Lain of the University of Richmond School of Law told the outlet. “In many ways, they’re the single most important members of a capital defense team.”

Robinson is accused of fatally shooting Kirk during a speaking appearance at Utah Valley University in September of last year. If convicted, he could face the death penalty by firing squad under Utah law. He is currently being held in jail in Provo, Utah.

A preliminary hearing is scheduled for July 6, though Robinson’s attorneys are reportedly seeking a delay to allow more time for mitigation research.

Prosecutors are expected to present evidence that includes a reported confession from Robinson’s father, as well as text messages allegedly sent by Robinson to his transgender-identifying roommate, Lance Twiggs. Prosecutors further allege that DNA recovered from a rifle at the crime scene matched Robinson, and he left a handwritten note on his keyboard prior to the shooting that stated, “I had the opportunity to take out Charlie Kirk and I’m going to take it.”

The practice of mitigation research stems from a Supreme Court ruling in the 1970s and requires juries in capital cases to consider factors beyond the crime itself when determining if a convict should receive the death penalty. Jurors must be allowed to weigh “compassionate or mitigating factors stemming from the diverse frailties of humankind” in their decisions.