SANFORD, Fla. (AP) — A judge has set a tentative trial date next year for a Florida neighborhood watch volunteer charged with fatally shooting an unarmed teenager.

Judge Debra S. Nelson set June 10 as the tentative start for George Zimmerman’s trial. But his attorney noted there are still several unresolved pretrial matters to complete. Another status hearing is set for December 10.

Zimmerman is charged with second-degree murder in the shooting of 17-year-old Trayvon Martin in February. The 29-year-old has claimed self-defense and is pleading not guilty.

Attorney Mark O’Mara estimated he expects the trial to last three weeks.

They’ll be back in court Friday for what is expected to be a lengthy hearing for arguments on several motions, including the defense asking for more time to interview state witnesses.