Florida watchman charged over Trayvon Martin death

The neighbourhood watchman George Zimmerman has appeared in a Florida court over the death of 17-year-old Trayvon Martin.

He faces a charge of second-degree murder in connection with the killing of the unarmed black teenager.

Prosecutors' initial failure to charge Zimmerman led to angry protests across the country. But Zimmerman insists he was acting in self defence.

The BBC's Steve Kingstone reports.