Dead Heat

This is an Apple Books audiobook narrated by a digital voice based on a human narrator.

When the team is called to a scene outside the high school with multiple deaths, they knew it was going to be bad. Truck versus protest never came out in favor of the protestors. 
When the driver is the cousin of your Lieutenant's wife, you hustle to the scene.
Then he tells you a 'shadow man' made him do it, and things get -very- interesting.
A dark entity is stirring up trouble in Harbor, and it's going to take everything the team's got to take this one down and keep the supernatural from becoming public. 
The race against time is a dead heat between the team and the entity - and there's no guarantee the team will win.