"A quarter of all video clips captured by Oakland police body-worn cameras...were accidentally deleted nearly two years ago when city employees installed a software upgrade"

SFG:

Instead of hitting “preserve everything,” the IT employees mistakenly checked a box marked “preserve,” Deputy District Attorney Butch Ford, who is prosecuting the murder case, explained Tuesday outside court.

A month later, Burke said, officers realized there was a problem when they searched for a video and couldn’t view it.