Home Learn about the death penalty in the United States.
It's not one case, it's thousands of cases. It's not one state, it's almost all of the states. James Liebman, the study's lead author CBS News Correspondent Dan Raviv reports CBS News Correspondent Bob McNamara reports on Gary Graham's case in Texas. A new study finds that legal mistakes are not the exception, but the rule, in death-penalty cases nationwide, CBS News Correspondent Bob McNamara reports. Columbia University researchers tracked all capital convictions from 1973 to 1995, nearly 5,800 cases.