Redstone Grandchild Plans to Take Legal Steps Against Shari

  • Keryn Redstone aims to work with Viacom directors in dispute
  • Former girlfriend Herzer seeks new trial in competency case

Sumner Redstone, left, with his daughter, Shari, in Beverly Hills, on Oct. 27, 2012.

Photographer: Katy Winn/Katy Winn/Invision via AP Photo

Keryn Redstone, granddaughter of Sumner Redstone, has retained the lawyer who represents the media billionaire’s former girlfriend and said she plans to work with Viacom Inc.’s directors in their legal battle for control of the media company.

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