Personal Problems at the Talk Station

ST. LOUIS (CN) - A talk radio executive sued his former company over a physical altercation he had with another employee.

Dan Marshall sued Grand Slam Sports, former on-air personality Brian McKenna and Grand Slam Operations Manager Michael Calvin, on Friday in City Court.

Marshall claims that McKenna, a former on-air personality, showed up at the station's offices on June 6, wanting to fight Nicholas Trupiano, another personality, for things said about McKenna on Trupiano's show.

Calvin met McKenna at the station and asked him to leave, according to the complaint.

McKenna refused to leave and asked to speak to Marshall, who was Grand Slam's president at the time. Marshall claims McKenna physically assaulted him after Marshall asked him to leave.

Marshall claims that Calvin knew about McKenna's violent propensities, but didn't warn him.

"Shortly before June 6, 2014, defendant McKenna had sent a video to defendant Calvin wherein he threatened the health and safety of another employee of Grand Slam Sports, LLC," the complaint states.

"Defendant Calvin received this video and was aware of its contents when defendant McKenna came to the offices of Grand Slam Sports, LLC to confront Mr. Trupiano.

"At no time prior to plaintiff being assaulted by defendant McKenna did defendant Calvin make plaintiff aware of this prior video when he told plaintiff that defendant McKenna wanted to speak with him."

Marshall seeks punitive damages for battery and negligent failure to warn. He is represented by Jamie L. Boock of Rossiter & Boock.

Grand Slam owns two St. Louis-area AM radio stations.

Marshall, who resigned from Grand Slam shortly after his altercation with McKenna, spent 15 months as Grand Slam's managing partner and president. He made waves when he switched the stations' sports talk format to guy talk on one station and girl talk on the other. During that span, several employees complained about payroll and other issues under Marshall's leadership, according to the Post-Dispatch.

Marshall, along with several prominent former athletes, were named as defendants in a lawsuit filed by Triad Bank in St. Louis County Court in July over a defaulted promissory note issued to Grand Slam Sports.

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