ORLANDO, Fla. -

Attorneys for George Zimmerman, the neighborhood watchman who shot and killed 17-year-old Trayvon Martin, have released new evidence on Thursday, including pictures of Martin's cellphone.

[PICS: Martin's cellphone | READ: FDLE report | Extraction | Discovery ]

The documents were posted on Zimmerman's defense website, GZLegalCase.com, titled the State's 12th supplemental discovery.

The evidence included pictures of Martin's T-Mobile Android phone, which he was reportedly on with Witness 8 when he and Zimmerman had a confrontation.

Zimmerman, 29, claims he shot Martin in self-defense inside a gated Sanford community and has pleaded not guilty to second-degree murder.

Zimmerman's murder trial is scheduled to begin June 10.

Watch Local 6 for more on this story.