Protesters marched on the offices of Kenya's election commission on Tuesday, demanding a speedy investigation of the murder of a senior official that has raised fears over the legitimacy of next week's national elections.
Chris Msando, the election board's head of information, communication and technology, was found murdered on Monday. He had been tortured before he was killed, authorities said .
Msando oversaw the live transmission of election results, a contentious area that the opposition has said could be used to rig next Tuesday's presidential and parliamentary polls.