CLAYTON, Mo. (AP) — Attorneys for the family of Michael Brown are urging restraint on the part of both protesters and police once a grand jury decides whether the officer who shot him should face criminal charges.

Attorneys Anthony Gray and Benjamin Crump held a press conference Thursday outside the St. Louis County Justice Center, where the grand jury is meeting and Dr. Michael Baden, who performed a private autopsy on the family’s behalf, was scheduled to testify.

Crump said attorneys would not get into the substance of Baden’s testimony, except to say he had identified one additional entry wound in Brown’s chest. He did not elaborate on what that might mean.

Brown’s parents, who were in Geneva this week as the U.N. Committee Against Torture heard testimony about U.S. policies, did not attend.