A family friend of Wilson’s told The Washington Post that Wilson suffered a fractured eye socket. Ferguson police have said that Wilson’s face was injured and he needed medical treatment, but they did not go into any detail. On Wednesday night, Ferguson Mayor James Knowles III told Fox News that he could not confirm reports that Wilson suffered a fractured eye bone.

Prosecutors have not been in direct contact with Wilson yet, Magee said. McCulloch has been in touch with Wilson’s attorney but has not spoken to Wilson himself.

Wilson will be given an opportunity to appear before the grand jury, but he cannot be compelled to appear, Magee said.