just know this is a death investigation and we have to do this. >> happy to help. whatever to get him back home to comfort his daughter as quickly as possible. >> chris told investigators what happened. >> kourtney slept and he and christie in the spa bathing. sm >> she got out and i went in and i ran to the bathroom and got more coffee and tried to wake up the girls. she came back out. >> as christie returned to the spa, they passed each other in the patio, he went into the house. he went right back outside and saw his wife floating faced down in the spa. he called kourtney and they began a frantic effort to revive her. >> i came out and she's gone. >> from what? a fall? >> must have been.