Report names exec looking to sue Redstone

Former Viacom executive named as Karen Zatorski

The former Viacom executive who has threatened to sue chairman Sumner Redstone for harassment is Karen Zatorski, vp for corporate relations at Redstone's other company, CBS Corp., according to a report Friday.

She is not making sexual harassment allegations, but is focusing on issues of temper and violent outbursts, the DailyBeast reported.

Zatorski was an adviser on corporate strategy and communications to Redstone at Viacom before its split from CBS.