First at 4:00: Downtown brush fire, Chesterfield School App, Trayvon Update

First at 4:00

The Downtown Expressway is now back open after a brush fire briefly tied up traffic.

School closings and other critical alerts involving your children are now available to Chesterfield parents on their smart phones. Chesterfield County Public Schools just launched a new app. Tara Morgan has a sneak peek.

George Zimmerman remains behind bars in the Trayvon Martin shooting, but now a bond hearing has been set for next Friday. Deon Guillory has the latest on this developing story.

One mayor is being called a hero today. The Mayor of Newark, NJ ran inside a burning home to save his neighbor last night. Rachel DePompa has more on his story.

Plus, after a cool start to the day, it actually turned out to be quite comfortable outside. Meteorologist Jim Duncan is in the First Warning Weather Center with a check on temperatures.

Those stories and more coming up on NBC12 and streaming live on