The FBI launched an investigation at Rahal Letterman Lanigan Racing's headquarters Wednesday morning, Zionsville Mayor John Stehr confirmed to IndyStar. "The FBI asked us to assist this morning as they served a warrant at the (Rahal Letterman Lanigan) headquarters building,

FBI agents investigate the Rahal Letterman Lanigan Racing headquarters; the nature of the inquiry is undisclosed.

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The FBI went to IndyCar team Rahal Letterman Lanigan’s headquarters on Wednesday as part of an investigation. No official specifics are known about why the FBI went to the teams

The FBI raided the Indiana headquarters of Rahal Letterman Lanigan Racing, co-owned by David Letterman And Bobby Rahal.

Federal agents with the FBI with the help of Zionsville police conducted a raid at the headquarters of Rahal Letterman Lanigan Racing on Wednesday.The FBI said the raid was part of an active investigation but has not released details on what the investigation pertains to.

The Federal Bureau of Investigation had agents at Rahal Letterman Lanigan Racing’s race shop located just outside of Indianapolis on Wednesday. The reasoning behind its visit to RLL's headquarters in Zionsville,

FBI agents were on-site at Rahal Letterman Lanigan Racing's Zionsville IndyCar complex to conduct an investigation Sept. 18.