AdvertisementJustice Department To Investigate BART ShootingJuly 09, 2010Richard GonzalesfacebookEmailA worker with the Downtown Oakland Association sweeps the sidewalk near graffiti painted by protesters outside a drug store in Oakland on Friday. The federal government said it will investigate now that officer Johannes Mehserle was convicted Thursday of involuntary manslaughter, touching off angry protests that damaged stores and netted dozens of arrests. (AP)