A Florida judge granted bail Friday for George Zimmerman, the neighborhood watchman accused of killing 17-year-old Trayvon Martin.

After hearing testimony from both sides, including Zimmerman's parents and from Zimmerman himself, his bail was set at $150,000.

On Feb. 26, an unarmed Martin was reportedly shot by Zimmerman while returning home from a nearby convenience store.

The 28-year-old suspect has maintained that it was Martin who assaulted him the night of the shooting.

Nevertheless, he apologized Friday to Martin's parents for their son's death.

"I wanted to say that I am sorry for the loss of your son," Zimmerman told Martin's parents during his bail hearing.

"I did not know how old he was," he added. "I thought he was a little bit younger than I am. And I did not know whether he was armed or not."

Zimmerman's attorney said his client could be release from jail in a matter days.

Meanwhile, ABC News released a new photo from the night of the shooting that appears to show the back of Zimmerman's head covered in blood.
   
The photo could be used to back up Zimmerman's claim of self-defense.