BUFFALO, N.Y. — BUFFALO, N.Y. (AP) - A New York man who claims an ownership  stake in Facebook is now seeking 50 percent of the site's value from founder Mark Zuckerberg.
 

In a federal court complaint against Zuckerberg last year, Paul Ceglia sought 84 percent of Facebook.

He cited a contract he says he and Zuckerberg signed in 2003 that gave him half the business, plus more if it launched late.

A revised complaint dated Monday amends the claim to 50 percent and indicates that Ceglia agreed to waive the late-penalty clause before the site launched in 2004.
 

The Buffalo federal court lawsuit says Ceglia gave Zuckerberg $1,000 to help Zuckerberg get Facebook off the ground.

Facebook attorney Orin Snyder calls Ceglia a scam artist. In July, another Facebook attorney said Zuckerberg and Ceglia worked together on another website, but not Facebook.