NAIROBI, Kenya Kenya's military chief Gen. Francis Ogolla was among 10 people killed as a military helicopter crashed on Thursday, President William Ruto announced. Ruto in an address to the nation declared three days of national mourning to honor the fallen heroes where flags will fly at half-mast. He said the ill-fated Kenya Air Force helicopter departed from the capital Nairobi for the North Rift region as part of Operation Maliza Uhalifu (Swahili for End Banditry). Gen. Ogolla, a