High-profile Supreme Court precedent under examination again . At issue is how state can define mental retardation in capital cases . The court has ruled that a person with intellectual disability, such as autism or Down's syndrome, does not have the capacity to understand what he's doing and therefore cannot be sentenced to death for murder.
High-profile Supreme Court precedent under examination again . At issue is how state can define mental retardation in capital cases . Appeal focusing on Florida says state 's limits are too rigid .