It was not clear what evidence led the authorities to believe that he took part in the planning effort.
The fact that they were written in German led the authorities to check their content.
He confessed to the killing and led the authorities to the girl's body.
But more than a month would pass before a tip led authorities to the bodies.
While that turned out to be a false lead, it led the authorities to check public records.
"The investigation led the authorities to these sites," the law enforcement official said.
The threat led federal authorities to provide the prosecutor with a 24-hour security detail.
Not if you can lead the authorities to the people who are really responsible for all those deaths.
He also led authorities to a home in the area where they found manufacturing equipment to make the counterfeit money.
The result was a threatened players' strike in 1909, which led the authorities to re-recognize the union.