Insider Trading Scandal - What Happened?

This is whaty happen with the insider trading because they knew that the stock was going to go down and cthey need to sell there atock quick. There where 13 people involed with this insider trader. They knew alot about the stocck that going to drop before it actually drop and they bought and sold there actual stock.They use this info to make millions because they knew what to buy and what not to buy because they more they bought in that company the more they made. well i think it wrong for them to have done this because they made other lose money and they was making the big bucks while we was losing money.