Sergiy P. Usatyuk was the owner and admin of several DDoS-for-hire services also known as booters or stressers. He was sentenced on one count of conspiracy to cause damage to internet-connected computers for launching millions of DDoS attacks against victims from the U.S. and all over the world with the help of booter services he owned, administered, or supported, or administered, the services he controlled. He and a co-conspirator collected over $550,000 from charging subscriber fees from paying customers.
Source: https://www.bleepingcomputer.com/news/security/ddos-for-hire-services-owner-sentenced-to-13-months-in-prison/