The FBI says the owner of a Long Island investment firm has turned himself in to face accusations he cheated people out of more than $100 million.

FBI spokesman Jim Margolin says Nicholas Cosmo surrendered at a U.S. Postal Inspection Service office in Hicksville on Monday night.

Cosmo runs Agape World Inc. in Hauppauge. He's accused of taking in $300 million from investors and cheating them out of about $140 million.

A letter hanging in Cosmo's office window denies there was any Ponzi scheme, the type of fraud Bernard Madoff is accused of committing. A Ponzi, or pyramid, scheme promises unusually high returns and pays early investors with money from later investors.

Cosmo is expected to appear in court Tuesday.

Investors demand answers from Agape, Cosmo