State Police Sgt. Kim Riley says officers are working their way through the tips generated by the July 17 release of an FBI artist's sketch of the man.
Indianapolis Metropolitan Police officers fatally shot 45-year-old Aaron Bailey on June 29.
A western Indiana coroner says a Terre Haute city official recently suspended amid a federal investigation was found dead last week.
The utilities board commissioned the audit because of claims of money mismanagement. The audit is in, but the board is not releasing the findings to members.
The Federal Bureau of Investigation is conducting 'investigative activity' at the Terre Haute Wastewater Treatment administration building.
The FBI's Indianapolis office said that it and the U.S. attorney's office are conducting a civil rights investigation into the shooting death of Aaron Bailey.
The FBI has placed approximately 6,000 electronic bill boards in 46 states requesting tips about the case.
Hackers demanded about $43,000 for access to the data.
The FBI served a search warrant at City Hall Thursday morning.
U.S. Attorney spokesman Ryan Holmes says federal authorities were serving search warrants on the sheriff.