When a homeless couple moved in with a millionaire
After living on California's streets for a decade, Greg and Marie received a remarkable invitation.
A local businessman asked if they wanted to share his $4m home.
A year later, we reveal what happened next - and what the experiment tells us about America's homelessness crisis.
Video produced by Hannah Long-Higgins, Chelsea Bailey and Cody Godwin; edited by Hannah Long-Higgins.