https://www.theregister.co.uk/2017/08/08/marcus_hutchins_free_for_now/

British security researcher Marcus Hutchins was released on Monday from a Nevada jail after posting bail. He is now on his way to Milwaukee to face charges of selling malware online.

Hutchins, 23, who shot to fame after finding a way to kill off the WannaCry ransomware outbreak that crippled parts of Britain's National Health Service, was arrested last week just before he boarded a plane home to the UK from the US. He had been visiting Las Vegas for the BSides, Black Hat and DEF CON hacking conference season.