Here is the link to where the coroner identifies both pilots
https://www.greenvilleonline.com/story/news/2018/09/27/plane-crash-reported-near-greenville-downtown-airport-injuries-reported/1444821002/
The coroner identified the pilot who does hold an ATP, but only has SIC privileges for the DA-50 (FAA Database)
The coroner identified the copilot who does hold a Private certificate ASEL and AMEL. (FAA Database)