The loss of the officer’s life is horrible and I hope his family are doing alright. It seems the motorcyclist will be physically okay.
No mention of the circumstances of the collision which led to the officers death, I think there are two likely scenarios.
The first being that a speeding motorcyclist panicked when he saw the officer and hit him, either target fixation or low side due to grabbing brakes.
Or the officer stepped into traffic to halt the bike and the motorcyclist was either unable to stop or played chicken.
No matter how it happened I think the motorcyclist will be screwed (perhaps not unfairly) by the legal system as hard as possible, which will only highlight how little punishment car drivers receive for killing motorcyclists and pedestrians.