Independent journalist Marcy Wheeler has written a summary of the current state of the case against Marcus Hutchins [emptywheel.net]. Marcus is also known online as MalwareTech and came into the spotlight last year for stopping another global outbreak of more M$ Windows malware.
In short, she covers the following five points about the case:
Marcus was arrested last year after attending a security conference inside the US.
Earlier on SN:
Marcus Hutchins, WannaCry-Killer, Hit With Four New Charges by the FBI [soylentnews.org] (2018)
Researcher Who Stopped WannaCry Ransomware Detained in US After Def Con [soylentnews.org] (2017)
"Biggest Ransomware Attack in History" Hits Around 100 Countries, Disrupts UK's NHS [soylentnews.org] (2017)