Williams' ashes scattered in San Francisco; Carey, Cannon reportedly separate

The day's top showbiz news and headlines including Robin Williams' ashes scattered in San Francisco Bay, Mariah Carey and Nick Cannon reportedly separate, and "The Simpsons" gets a mega marathon. Bob Mezan reports. Credit to Reuters. FOR USE OF "THE SIMPSONS" MUST COURTESY FOX BROADCASTING COMPANY WITH NO ARCHIVAL OR WIRELESS ACCESS AND NO RESALE