Killer BART Cop Released Early from Jail 12.84K Jeff Neumann 06/13/11 06:57AM Filed to: justice justice Cops Police Murder Crime bart Former BART officer Johannes Mehserle, who shot and killed an unarmed man in a subway station in 2009, was released from jail today after serving 11 months of a two-year sentence for involuntary manslaughter. That seems totally fair.