Neighborhood watch volunteer George Zimmerman has been arrested and faces a charge of second-degree murder in the shooting of Trayvon Martin, the prosecutor in the case announced.

In a televised news conference, State Atty. Angela B. Corey outlined the charges in the case that has sparked national demonstrations calling for Zimmerman’s arrest.

“I can tell you we did not come to this decision lightly,” Corey told reporters. “We do not prosecute by public pressure.”

And she added: ““We will continue to seek the truth about this case,” she said.

She said her office had filed information with the charge.

She said the 28-year-old Sanford man is in custody in Florida but wouldn’t say where.