The death of WR Lazard's founder this week comes as both the Securities and Exchange Commission and the Manhattan district attorney's office continue probes encompassing various aspects of his firm's business dealings with a troubled New York State agency.

Wardell Lazard, who was found dead Wednesday in Pittsburgh, is not a target of the investigations, but a source with knowledge of the SEC's probe said that this firm, WR Lazard & Co., is being examined on several fronts.

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