The threatening tweet sent Monday has since been taken down. It asked readers to make sure the rest of Waltman's life is "a living hell." It also asked the Clarion Ledger to fire reporter Brian Broom, who wrote about Waltman's kill.
Waltman told Broom on Wednesday that he had been verbally attacked in response to Olbermann's tweet. The newspaper's executive editor, Sam R. Hall, tweeted then that Olbermann's threatening message would've been a "fireable offense."
Many on Twitter asked ESPN if Olbermann's actions violated company policy.
Information from: The Clarion Ledger, http://www.clarionledger.com