A key cooperating witness in an FBI sting that targeted Trenton's Mayor has died.


Trenton Mayor Tony Mack at a press conference (WCAU TV)

The Times of Trenton reports former attorney Lemuel Blackburn was 75 and he had been battling illness for several years.

Federal documents identified Blackburn as a cooperating witness in the sting that targeted Trenton Mayor Tony Mack. It's alleged Blackburn met a sandwich shop owner and Mack contributor to solicit the mayor's support for a phony parking garage project.

Federal prosecutors allege Mack and Joseph Giorgianni agreed to take a $100,000 bribe from the government informant.

Giorgianni acknowledged in a July interview with the newspaper that Blackburn gave him envelopes full of cash.

Mack and Giorgianni have pleaded not guilty to the charges.

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