This page examines the Eighth Amendment's ban on cruel and unusual punishment, particularly in the context of capital punishment in the U.S., including lethal injection and notable Supreme Court cases...This page examines the Eighth Amendment's ban on cruel and unusual punishment, particularly in the context of capital punishment in the U.S., including lethal injection and notable Supreme Court cases like Furman v. Georgia and Roper v. Simmons. It distinguishes between intellectual disability and mental illness, critiques California's "three strikes" law, and analyzes sentencing enhancements while referencing the Sixth Amendment's jury trial rights.