St. Louis County, Missouri, prosecutors are investigating an accusation of misconduct on the grand jury hearing the case against Ferguson police officer Darren Wilson, who killed 18-year-old Michael Brown Aug. 9. The spokesman for the county prosecutor said Wednesday that the accusation comes from a "Twitter user." Several Twitter users published messages Wednesday about one juror who appears to have discussed the case with a friend. 

Twitter user and St. Louis resident Susan Nichols (@thesusannichols) tweeted Wednesday afternoon that she is friends with a member of the jury who doesn't believe there is enough evidence to arrest Wilson. The tweet and Twitter account were later deleted, but not before Shaun King, and activist and writer at the liberal Daily Kos site, had tweeted a screenshot. 


The jury has been examining evidence on the Aug. 9 fatal shooting since Aug. 20, and is expected to wrap up hearings by later this month or by mid-November. Grand jury proceedings are confidential. If a juror has leaked evidence or shared what has been discussed with someone outside the proceedings, the prosecutor's office may have to convene a new group of jurors and start over.