Old_Geezer - //How is a policeman expecting to stop a speeding fleeing car ? Don't they stay out of the way and report the sighting such that other cars can converge ? Unsure I understand this story. //
As I understand it, the officers were deploying a 'stinger' which is an extendable carpet of hollow spikes which puncture the tires of the fleeing vehicle, bringing it safely to a stop.
Deployment means the officer standing right by the roadside, or in this case, on a central reservation. On this occasion, the driver aimed his car directly at the officers, one got out of the way, one was hit and died of his injuries.
Because the driver deliberately aimed his vehicle at the officers, the charge will be murder when the case comes to court.