It takes some nerve for a convicted murder to beg for clemency. If Troy Anthony Davis has shown his victim the late Mark Allen MacPhail any clemency, or mercy, Davis would not now be on death row, from Atlanta Journal Constitution [1]:
Parole board denies clemency for Troy Davis
The mother of a murdered police officer reacted with caution when she got the news Tuesday morning that the state Board of Pardons and Paroles had declined to commute the death sentence of Troy Anthony Davis, the man condemned for killing her son.
I say give Davis all the mercy he gave to MacPhail, to wit none.