Attorneys won't be able to mention Trayvon Martin's drug use, suspension from school and past fighting during opening statements in the trial for the neighborhood watch volunteer who fatally shot the teen, a judge ruled Tuesday.

Circuit Judge Debra Nelson also refused to allow jurors to travel to the shooting scene during trial, and rejected a defense request to delay the trial set to begin June 10.

The judge called the request to let jurors see the crime scene "a logistical nightmare."

George Zimmerman is charged with second-degree murder in the 17-year-old's killing and has pleaded not guilty, saying he acted in self-defense. He did not attend Tuesday's hearing.

The judge also ruled that some of the Martin's texts and other social media statements won't be allowed in opening statements, though some of the teen's personal history could be allowed later with a ruling from the judge depending on how the case progresses.

Zimmerman's attorney, Mark O'Mara, told the judge that Martin's marijuana use and past fighting was central to the argument that Zimmerman used self-defense when he confronted Martin last year at a gated community in Sanford, Fla.