Yes, the international community should prosecute the president of Sudan for war crimes, because he is guilty of inflicting great pain and suffering upon his people. His prosecution would also send the message to other totalitarian leaders that efforts that hurt their own people will not be tolerated. This is important for the international community to make peace with the suffering in Sudan.
Sudan, gripped in a decades-long drought, has myriads of problems. Economic upheaval, such as those in Germany in the first half of the 20th Century, often leads to violent leaders like Adolf Hitler. Omar al-Bashir is no different. He's governing a complicated situation that unfortunately led to violence against his own people. Despite the hardships in Sudan, there is no excuse for mass killings. Like any world leader who kills to maintain power, al-Bashir should be prosecuted for war crimes in the International Criminal Court for his war crimes in Darfur.