Conversation so far:
When did THompson get interested in video games?
CANNOTANSWER.
When was his first lawsuit involving video games?
Thompson got involved in a case involving an adult on one occasion in 2004.
What was the claim in that case?
This was an aggravated murder case against 29-year-old Charles McCoy, Jr., the defendant in a series of highway shootings the previous year around Columbus, Ohio.
How was this related to video games?
When McCoy was captured, a game console and a copy of The Getaway were in his motel room.

Question: Whom did he represent in the suit?
Self-contained rewrite: Whom did Jack Thompson represent in the suit against Charles McCoy, Jr.?