Jack Whitaker was a hardworking grandfather in rural West Virginia, and thought he had hit all but one number on Powerball, getting him something like $100k. He awakened the next morning to find out that the TV report made a mistake, and he had actually hit all of the numbers. This gave him a $314 million jackpot, which he took as a lump sum of $113m (not sure why such a huge difference).
Whitaker at first appeared to be the model of huge jackpot winners. He announced he'd live life the same, aside from quitting his job, and would give a way a lot of the money to people in need. However, as lots of people kept hassling him with their hands out (including many scammers), and as he succumbed to the temptation to spend lots of his time at a strip club and throw his money around, he began to change.
Unfortunately, as Jack changed and became increasingly drunk, perverted, and irresponsible, it tore about many lives in his small West Virginia town, especially several young people who fell under the influence of his increasingly troubled granddaughter.
Fascinating WaPo article from 2018, which I just read tonight. Long read but interesting:
https://archive.ph/KFcld