Wow, the news about R. C. Sproul Jr. being defrocked is all over the Internet. Even Human Events is reporting on it.
"Among the reasons for the disciplinary action are charges of spiritual abuse of members and attendees of St. Peter Presbyterian Church, as well as financial irregularities that include the “identity theft” of another church’s Federal Tax I.D. number."As well as practicing paedo-communion (giving communion to infants or children) which Sproul Jr. knew was forbidden by the Presbytery.
Read more about it here. And you can read the report from the Moderator here.
Update: More information here