The prisoner to be executed should be given a thorough medical examination. On the day of his execution, he should be sent to the hospital infirmary, anathematized, pithed like a frog, and then his tissues and organs salvaged.
In this way the capital offender will be be able to, in a small way, repay some of his debt to society.
"Idcirco eum cum universis complicibus, fautoribusque suis, judicio Dei omnipotentis Patris, et Filii, et Spiritus Sancti, et beati Petri principis Apostolorum, et omnium Sanctorum, necnon et mediocritatis nostrae auctoritate, et potestate ligandi et solvendi in coelo et in terra nobis divinitus collata, a pretiosi Corporis et Sanguinis Domini perceptione, et a societate omnium Christianorum separamus, et a liminibus sanctae matris Ecclesiae in coelo et in terra excludimus, et excommunicatum et anathematizatum esse decernimus; et damnatum cum diabolo, et angelis ejus, et omnibus reprobis in ignem aeternum judicamus; donec a diaboli laqueis resipiscat, et ad emendationem, et poenitentiam redeat, et Ecclesiae Dei, quam laesit, satisfaciat, tradentes eum satanae in interitum carnis, ut spiritus ejus salvus fiat in die judicii."
Very bad idea.
A slippery slope that will take us who knows where.
I have no objection to the death penalty, but the purpose is for society to have the wrong doer pay with their life, not be a source of body parts.
Like many things, something that starts out one way soon evolves into something entirely different.