Four years ago, Joshua D. Davis stabbed a 72-year-old Pasco bus driver to death in front of a bus full of children.

The story of Richard “Dick” Lenhart’s murder grabbed national headlines and spurred a new law in Washington, but Davis’ murder trial had been delayed many times while experts debated his sanity.

Now a jury will determine if the now 38-year-old Richland man understood what he was doing on Sept. 24, 2021.

Davis has pleaded not guilty by reason of insanity to first-degree murder with a deadly weapon.

Franklin County prosecutors and defense mental health experts agree that Davis has schizophrenia, but they disagree on whether the condition caused him to be legally insane at the time.

A jury has been picked, and opening statements are set to begin Wednesday.

But first, attor

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