The $451 million mystery is over. A 20-year-old Florida man claimed the fourth-largest jackpot in Mega Millions lottery history, lotto officials confirmed. Shane Missler, of Port Richey, was the lone winner of the Jan. 5 jackpot. He elected to take a lump sum payout of $281.2 million, officials said. Missler plans on pursuing a "variety of passions," according to the Florida lottery, as well as helping others. “I’m only 20, but I hope to use it to pursue a variety of passions, help my family and do some good for humanity,” he said, according to lottery officials. The win didn't...