Judge Michael A. Smith ordered that Robert Darrell Johnson, 36, be committed to Patton state Hospital until his mental competence is restored, according to court records.
A jury found Johnson guilty of first-degree murder on Nov. 27 following a trial in the San Bernardino Superior Court. But a week later that same jury ruled that the defendant was insane when he stabbed Lawrence Kester of Fontana.
On May 7, 2010, Johnson boarded an Omnitrans bus near Riverside Avenue and Base Line in Rialto and walked to the back. A few minutes later, he came up front started stabbing the driver, authorities said.
Kester lost control of the bus and it crashed into a tree.
Johnson ran off the bus and into a Bank of America where he threw the knife away, authorities said. He then ran across the parking lot to a Stater Bros., where he was arrested.
Kester, 47, died from multiple stab wounds.
Johnson is scheduled to come back to court on Aug. 16 for a progress report.
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