Rudolph Valentino Gary Jr., the off-duty rookie Philadelphia police officer who fatally shot his brother-in-law following a neighborhood water-gun fight in 2010, pleaded guilty to third-degree murder Wednesday, sparing himself the possibility of being found guilty of first-degree murder and spending the rest of his life in state prison. Gary, 28, entered his plea just after noon before Common Pleas Court Judge Shelley Robins New. The agreement between the District Attorney’s Office and Gary calls for him to be sentenced to 25 to 60 years in state prison for third-degree murder and aggravated assault, for accidentally shooting bystander Indria Johnson in the leg.