BRIGHT BULB: After Marjorie Knoller’s dog-mauling-death trial in 2002, she served just three years because the judge arbitrarily set aside the jury’s second-degree murder conviction. But the District Attorney’s Office persevered and the San Francisco Superior Court reinstated the murder penalty Monday.

In imposing the more fitting sentence of 15 years to life, the new judge observed that Knoller made no attempt to stop or report her massive dog’s fatal attack on neighbor Diane Whipple, then blamed the victim and committed perjury.