A Florida judge has set bail at $150,000 for the neighborhood watch volunteer charged in the shooting death of 17-year-old African-American Trayvon Martin.

The judge's agreement to release George Zimmerman on bail came at a hearing Friday, where Zimmerman apologized to Martin's family.

“I wanted to say I am sorry for the loss of your son. I did not know how old he was. I thought he was a little bit younger than I am, and I did not know if he was armed or not.”

The 28-year-old Zimmerman has been charged with second-degree murder in the February 26 shooting.

The judge set a number of conditions for Zimmerman's release, including electronic monitoring, that he said meant Zimmerman could not be released Friday. Zimmerman also cannot have any firearms or consume alcohol and must adhere to a curfew.

Zimmerman's wife and parents testified by phone during Friday's hearing that he is not a violent person.

Prosecutors say Zimmerman racially profiled Martin as a potential criminal and confronted him. The teen was unarmed and walking back home from a convenience store.

Zimmerman, a white Hispanic man, has admitted to killing Martin, but says he acted in self-defense when the teen attacked him.

The case sparked nationwide protests over racial profiling and Florida's so-called “Stand Your Ground” law that allows people to use deadly force if they feel their life is in danger, or they are at risk of serious injury. Police did not initially arrest Zimmerman after the shooting because of his claims of self-defense.

Florida Governor Rick Scott Thursday introduced a 17-member commission to examine the controversial law. The panel, led by Lieutenant Governor Jennifer Carroll, will conduct a series of public hearings across the state, and pass along its recommendations to Scott and the Florida legislature.