Doris Ann Carlson -- Arizona

Contract killing of elderly mother-in-law, for insurance and inheritance.
Old woman was stabbed repeatedly, took 6 months to die.

http://www.adc.state.az.us:81/DeathRow/DRowCF.htm#CARLSON

http://www.superiorcourt.maricopa.gov/publicInfo/rulings/rulingsReaditem.asp?autonumb=42