The facts of the case matters a lot even when it meets the minimum requirements for any form of punishment. This is where sentencing guidelines come in to give more details on how the judge should proceed after the conviction. In normal jail term sentencing, the judge is given a lot of lee way, eg 6 to 10 years. In capital punishment, you do not have that luxury and therefore it must be preserved for the most extreme nature of the crime.
I think this a case in githurai not the one in downtown Nairobi. These guys robbed the woman and sexually assaulted her. Most like these are members of the outlawed mungiki. The video was filmed by someone who saw the attack.
I think the law says a robbery by two people is regarded as robbery with violence. Either way these guys will end up serving over 30 years in jail. They deserve this sentence.
