A war crimes case against Sang and Kenyan Vice President William Ruto began Tuesday at the International Criminal Court at The Hague, Netherlands.
A second day of testimony Wednesday featured Sang defending his innocence. Fatou Bensouda, the chief prosecutor at the ICC, characterized Sang as the "voice of hate" during a post-election crisis that left more than 1,000 Kenyans dead in 2007.
Sang's defense lawyer, Katwa Kigen, was quoted by The Daily Nation newspaper in Kenya as saying Sang committed no crimes. He is innocent and there is no evidence to implicate him in the post-election violence, Kigen said.
Sang addressed the court, saying he was a law-abiding citizen who lived his "life as a Christian," The Daily Nation reported.
Both men issued not-guilty pleas before the court Tuesday. Prosecutors accused Ruto of turning to violence in an effort to consolidate his grip on power.
He was named vice president by former rival, Uhuru Kenyatta, who was elected president in April. Kenyatta faces similar charges at the ICC in November.
Kenyan lawmakers voted to sever ties with the ICC, though the court reminding Abuja the move had no bearing on cases already on its books.
Prosecutors said Wednesday they'd summon their first witnesses next week.
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