From the Department of Justice, this data collection provides annual data on prisoners under a sentence of death and prisoners whose offense sentences were commuted or vacated during the period 1973-2005. Information is supplied for basic sociodemographic characteristics such as age, sex, education, and state of incarceration. Criminal history data include prior felony convictions for criminal homicide and legal status at the time of the capital offense.
http://www.icpsr.umich.edu/cocoon/ICPSR/STUDY/23360.xml
Note: data updated through 2007 here.
