2 people dead, about 15 possibly missing after deadly flash flooding rips through Grand Canyon. And more rain could come

CNN, DAVID J GREGORY, ERICA VIOLA, KPHO, KTVK, WIEKE DE BOER By Maria Aguilar Prieto, Tyler Ory, Mounira Elsamra, Sarah Dewberry, Holly Yan, CNN (CNN) — One of the nation’s most famously arid landmarks succumbed to deadly flash flooding over the weekend, leaving at least two people dead and roughly a dozen unaccounted for as