"Prosecuting a death penalty case is extremely expensive for a state and drains money that could be used for education and social programs. It costs more than sentencing a prisoner to life without parole.
The most comprehensive death penalty study in the country found that the death penalty costs North Carolina $2.16 million more per execution than a non-death penalty murder case with a sentence of life imprisonment (Duke University, May 1993). In its review of death penalty expenses, the State of Kansas concluded that capital cases are 70% more expensive than comparable non-death penalty cases."