her white-knuckled dash to the hospital earned julie the affectionate nickname nascar nanna. >> the flashersere going, and she was honking the horn. >> what was she saying to you? she talking to you? >> she said don't have a baby in my car. keep your legs crossed. don't have a baby in the car. >> everything seemed to be going great for the griffiths in 2013. keith had weight loss surgery and dropped more than 100 pounds. julie was over the moon with two grand daughters. but also that year came the rift. zach disclosed to his very religious, conservative parents that he is gay. >> it was definitely hard. it went from my mom was my best friend and going from talking to her multiple times a day to just being completely -- just completely shut off. >> julie visited zach that fall. they tip-toed around the elephant in the room, but the time together gave zach hope. >> was that the step as you look back to patching things up between you and your mom? >> yeah. >> there was a way forward? >> there was definitely a way forward. we just needed more time. >> but then came that cold night in january. >>