Khalid Sheikh Mohammed organised the 9/11 bombings and it's safe to say he will be convicted of this crime because he admits this and is proud of what he has done.
When found guilty Mohammed will face the death sentence. Mohammed has requested the death penalty as he wishes to be a martyr.
Should the wishes of a mass murderer be granted? Would a more suitable punishment be life imprisonment where he would watch through his prison bars as Islamic Fundamentalism fades away. His death in prison, years from now, would not be as a martyr but as a murderer for a forgotten and disgraced cause.
Execution can never be a deterrent against those who are prepared to lose their lives, it can only be a punishment. In this case is execution a punishment that fits the crime?