Defense attorney Mark O’Mara kicked off a hearing Tuesday in the George Zimmerman case by acknowledging it would have been Trayvon Martin’s 18th birthday.

Zimmerman has pleaded not guilty to a second-degree murder charge for shooting Martin on Feb. 26, 2012. Martin was returning from a convenience store and was unarmed. Zimmerman told police he shot the teen in self-defense.

At Tuesday’s hearing, attorneys from both sides argued over several defense motions.

One of the most significant issues on the docket was whether Zimmerman’s trial would be delayed.

Zimmerman’s attorneys wanted more time to prepare for the trial, but Judge Debra Nelson denied the motion to delay the proceedings. Zimmerman’s trial will began as scheduled on June 10. Nelson said that she believed Zimmerman’s attorneys had enough time to overcome their hardships.

In a statement, Martin family attorney Ben Crump said, "The spirit of Trayvon Martin was definitely in the courtroom today on what would have been his 18th birthday. The judge ruled that the trial would not be delayed."

However, Nelson did grant O’Mara’s subpoena request for evidence from the 7-11 Martin went to just before Zimmerman shot him.

Nelson also indefinitely postponed a defense deposition of Crump, because Crump’s attorney argued it was improper to depose an attorney involved in the case. 

 Zimmerman’s next hearing is scheduled for March 5.