NEW ORLEANS (AP) — Former New Orleans Mayor Ray Nagin, best remembered for his impassioned pleas for help after the levees broke during Hurricane Katrina, was convicted Wednesday of accepting bribes in exchange for helping businessmen secure millions of dollars in city work, including after the devastating storm.

The federal jury found Nagin guilty of 20 of 21 counts against him, involving a string of crimes before and after the storm. He sat quietly at the defense table after the verdict was read and his wife, Seletha, was being consoled in the front row.

Before the verdict, the 57-year-old Ray Nagin said outside the New Orleans courtroom: "I've been at peace with this for a long time. I'm good."

Sentencing was set for June 11, Nagin's 58th birthday. Nagin left the courthouse more than an hour after the verdict was read, and after U.S. District Judge Helen Berrigan ordered that his bond be modified to provide for "additional conditions of electronic monitoring and home confinement."

The Democrat, who left office in 2010 after eight years, was indicted in January 2013 on charges he accepted hundreds of thousands of dollars in bribes — money, free vacation trips and truckloads of free granite for his family business — from businessmen who wanted work from the city or Nagin's support for various projects.

The granite and some of the money came from developer Frank Fradella. More money came from another contractor, Rodney Williams, for Nagin's help in securing city contracts. Convicted former city vendor Mark St. Pierre, who got a no-bid contract with the city in Nagin's first term, provided trips to Jamaica and Hawaii.

A movie theater owner seeking tax breaks provided a trip to New York, prosecutors said. In a conspiracy count, prosecutors also said Nagin sought and got granite work for his business from a major retailer, identified in court as The Home Depot, while helping the retailer work out details related to the opening of a new store in post-Katrina new Orleans. The company was not accused of any wrongdoing.

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Nagin had vehemently denied it all during several hours of testimony that spanned two days of trial. But the jury didn't believe him. The only not-guilty verdict came on one count of bribery involving a portion of the money from Williams.

Nagin had testified that key witnesses lied and prosecutors misinterpreted evidence including emails, checks and pages from his appointment calendar linking him to businessmen who said they bribed him.

As Nagin and defense attorney Robert Jenkins left the courthouse Wednesday, walking with a throng of media, photographers and video cameras, Nagin could be heard saying: "I maintain my innocence."

The defense repeatedly said prosecutors overstated Nagin's authority to approve contracts. His lawyer said there is no proof money and material given to the granite business owned by Nagin and his sons, Stone Age LLC, was tied to city business.

The charges against Nagin included one overarching conspiracy count along with six counts of bribery, nine counts of wire fraud, one count of money laundering conspiracy and four counts of filing false tax returns.

The charges carry a variety of maximum sentences ranging from three to 20 years, but how long he would serve was unclear and will depend on a pre-sentence investigation and various sentencing guidelines.

Jenkins said Nagin's testimony didn't hurt the case and that an appeal would be filed after sentencing.

The conviction wasn't a surprise to Rainelle Smith, 64, of New Orleans, who said she voted for Nagin.

"I don't believe he served the city as well as he should have," she said. "He was supposed to come in and prevent the corruption the city was known for. We, in my family, thought of him as the 'cleanup man.' Instead he gets in office and he soiled it more."

The charges resulted from a City Hall corruption investigation that had resulted in several convictions or guilty pleas by former Nagin associates by the time trial started on Jan. 27.

Fradella and Williams, both awaiting sentencing for their roles in separate bribery schemes alleged in the case, each testified that they bribed Nagin.

Nagin's former technology chief, Greg Meffert, who also is awaiting sentencing after a plea deal, told jurors he helped St. Pierre, bribe Nagin with lavish vacation trips. St. Pierre did not testify. He was convicted in the case in 2011.

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Associated Press writers Janet McConnaughey and Chevel Johnson contributed to this report.