As a grand jury gets closer to announcing its decision, Ferguson Police Officer Darren Wilson, who fatally shot Michael Brown, is in the final stages of negotiations with city officials to resign, sources close to the talks said.

The grand jury hearing evidence is preparing to meet Friday for what might be its final session. A decision on whether to charge Wilson in the death of the unarmed teen could come the same day, law enforcement officials have said.

Wilson maintains he has done nothing wrong, and the resignation talks have hinged on whether a grand jury returns an indictment against him in Brown's death, the sources said.