Jay Leno co-defendant in vintage car swindle kills self!

Dennis Ricca, who is Jay Leno’s codefendant in a lawsuit stemming from the alleged swindle of the Macy’s department store heirs, blew his brains out with a 9mm pistol in Orange County, a law enforcement official told The NY Post.

A Manhattan Supreme Court filing claims that Ricca and The Tonight Show host along with top execs at Garage Management Corp. and their affiliates – "knowingly participated in certain unlawful purported auctions and sales of" cars belonging to Macy’s heir John Straus.

Leno scored one of the alleged vehicles – the super -rare 1931 Duesenberg Model J worth $1.2 million.

A 1930 Rolls-Royce Phantom convertible valued at $500,000, ended up in Ricca’s possession.  Prior to his death, Ricca was Garage Management Corp.’s director of maintenance.

Reps for everyone declined to comment to media.