Would you like a Killer Heart? Literally.

I think that in cases where an inmate should be executed for being too selfish to care about the lives they destroyed, their vital organs should be ripped from their bodies and given to those that really need it and are not a threat to society. This would be the more humane thing to do on the one hand because there are countless incidents of failed executions and personally a quick death is definately the way to go. Human Rights activists would agree that its just cruel to:

a. leave a man half electrocuted (load shedding Zindabad )
b. wait a solid 2 minutes before the rope gives in and the man dies slowly ( gallows )
c. endure long gassings
d. be hit by a semi blunt knife till the head comes off

For those who say, "hey, take the organs after they're dead", I say...riiight. you see, by hanging or poisoning a man, you are doing the same to the organs which dont stand a chance once the process has started. They Die Out.

Now I know in developing nations like Pakistan, its likely that the inmates who are considered without rights are forced to give their kidneys or livers in some way, but as I dont have concrete facts before me, I cannot comment any further.

Consider the loss when the organs are not utilised:
Someone died waiting for that criminals' heart.
Two died waiting for his kidneys
Two more suffocated for lack of his lungs.
Burns victims could have been treated with the skin.
The liver, split two ways, could have saved two babies.
The inmate could allow nearly a dozen people to live, in exchange for a body he wouldn’t be around to enjoy anyway. The math says we should encourage death-row organ donation. This is capitalism, the essence of which, frickin utilise your resources.

An obscure thing Ethics says we cannot simply murder criminals, even WITH their consent. No Doctor likes to live with the fact that they tortured a man before his death. Even if he really, Really, REALLY deserved it.