I’ve worked out a way to get @Robot_Maria to send PMs via the API, and I have a list of characters and their icons. So all I need is 2-4 players.
I did change some icons to match available emoji (pipe to monocled face, necklace to woman, police badge to policeman), so the list of suspects is:
Inspector G. Lestrade
John H. Watson
and your scoring sheet will look like: