they were about to evacuate. they thought they had plenty of time to get down and we were waiting to hear from them. reporter: sarah s sister mindy said the family never got a second call. then it took some time to piece together what happened up there. reporter: four hours after she called her family, a neighbor found the mother of two and her 17-year-old daughter in the driveway incoherent and barely conscious. she and my sister have burns on 60% of their beside. reporter: paul ran towards the house to get them water. about 30 feet down the driveway. reporter: that s where he found 14-year-old ky lifeless on the ground. when i got the call about ky, i couldn t stand. i fell to my knees and i just said, oh, no. reporter: mindy found out later sarah and her husband john were driving away with the kids when both of their cars caught on fire. they jumped out, scattered and lost sight of one another. john is still sedated in a san
francisco hospital and in an attempt to save her life, cressa lost both of her legs in surgery. mindy said she is not ready to tell her big sister that her baby boy didn t survive. i can t imagine waking up to worst news than my sister is going to wake up to. reporter: she s blown away by the support from her community so far but notes the fight for survival is far from over. i have my life and i have my family. all i can do right now is use all of this strength and all the, everything i ve been through up until this moment to be here for my family. what a story. mindy will be joining us in our next hour to talk more about her family, her nephew who has lost and the road ahead for all of them. still ahead, waiting his fate. disgraced mogul harvey weinstein s future is being decided as we speak.