It's official: New Jersey man won $338M Powerball jackpot

(CNN) -- He claimed he won the prize this week, and now it's official: Pedro Quezada of New Jersey is the winner of Saturday's $338 million Powerball jackpot, the New Jersey Lottery said Tuesday.

Quezada announced on Monday that he held the winning ticket, but the final word from lottery officials didn't come until Tuesday.

"I felt pure joy, just happiness," Quezada, a Dominican immigrant and deli employee, told reporters at a news conference Tuesday.

He said he was walking to work Monday and saw a crowd at a liquor store in Passaic, New Jersey. He'd bought his Powerball ticket there so he thought he should go in to see who won. He had his ticket with him, and showed it to the clerk, who checked it and told him he was the winner.

Laughing, he recalled leaving the store and going to "hide." He said he was nervous Monday night. "I couldn't close my eyes," the father of five said in Spanish, relying on a translator throughout the news conference.

"I never thought I would win such a prize," Quezada said.

The deli worker chose the up-front cash option, instead of an annuity, when he bought his ticket. The lump sum is $211 million -- but after federal and state taxes, he will net about $151 million, New Jersey Executive Director Carole Hedinger has said.

One reporter asked if he planned to stay in New Jersey, while others inquired if he wanted to return to the Dominican Republic to celebrate with family and friends.

"I don't know," he said. "I have to think about it, my mind is not clear yet."

When asked if he plans to keep working, he said no. And his son who works with him at the deli won't continue to work either, Quezada said.

"Of course, my family's a very humble family and we're going to help each other out," he said.

Quezada said he might buy a car with part of his winnings.

A reporter asked him what kind of car he has now.

"My feet," he answered, laughing.

He said he wants to help people with his winnings.

"I don't know exactly how, but I will help those in need," he said.

Quezada's ticket matched all six numbers drawn Saturday night: 17, 29, 31, 52, 53 and the Powerball, 31.

The largest jackpot in Powerball history was $587.5 million. The lottery is held in 42 states, the U.S. Virgin Islands and Washington.