To know one’s surprise:

Mehserle convicted of involuntary manslaughter

“A jury found former BART police Officer Johannes Mehserle guilty Thursday of involuntary manslaughter, concluding that he did not intend to kill train rider Oscar Grant when he shot him in the back on New Year’s Day 2009 but acted so recklessly that he showed a disregard for Grant’s life.”

Firing a bullet into the back of a prone, restrained subject is reckless – AND it is also murder.