The latest in the events marking a year since the death of 18-year-old Michael Brown in Ferguson, Missouri (all times local):

12:10 p.m.

A crowd of hundreds has held four and half minutes of silence to mark a year since the death of 18-year-old Michael Brown in Ferguson, Missouri.

The silence began at 12:02 p.m., the time Brown was killed, and the length was to symbolize the four and a half hours that his body lay in the street after he was killed. Two doves were released at the end.

A march was set to start at the site where Brown, who was black and unarmed, was fatally shot by Ferguson officer Darren Wilson on Aug. 9, 2014.

A grand jury and the U.S. Department of Justice declined to prosecute Wilson, who resigned in November, but the shooting touched off a national "Black Lives Matter" movement.