A new lawsuit contends that Jeffrey Horan, a millionaire financier who was injured in a 2001 helicopter accident, was failed by his financial adviser, who did nothing while Horan gave away lavish gifts to near-strangers as he slowly lost his sanity.

The lawsuit, which was filed by Jeffrey's brother Lawrence, outlines how two individuals, contractor Alex Gershkovich and Queens woman Elizabeth Orti, took advantage of Horan's deteriorating mental state.

Horan bought Gershkovich a $260,000 Lamborghini while also paying him $600,000 to work on his Upper East Side apartment, while he gave a $72,000 Mercedes-Benz to Orti and transfered $300,000 to her account.

Horan was handicapped on his way back to Manhattan from a Philadelphia 76ers game in 2001 when his helicopter crashed in heavy fog. All the passengers survived, but Horan was mentally scarred, spending time in the psychiatric ward of Bellevue Hospital.

Bank of America financial advisers noticed nothing out of the ordinary with the way Horan was conducting business in 2010, when he began giving away his money in staggering amounts.The lawsuit alleges that it was Horan's deteriorating mental state that led him to act in such a generous way, handing out blank checks to total strangers.

"This is a very unfortunate situation where a guy with a severe mental disorder was taken advantage of by a great many people," Kieran Conlon, the attorney for Lawrence Horan, told the Daily News. The lawsuit argues that Ortiz and Gershkovich misled Horan "in order to take advantage of his mania and psychotic delusions." The suit is demanding the return of all of Horan's gifts.