The Emmy Award-winning journalist will host a new Lifetime special focusing on the controversial docuseries’ aftermath.
The broadcast journalist used a recent horse accident, where she suffered minor injuries, to remind herself of perseverance.
“She was pretty awesome. But mostly I wish lots of young, working women had access to her wisdom,” O'Brien wrote in tribute to her mother.
She honored his life as someone who believed everyone was equal in a series of touching tweets.