He was 41.
Broad through the shoulders.
Jaw set hard.
Eyes that moved quickly and made decisions even faster.
His personnel record included commendations.
It also included three use-of-force incidents that had been reviewed and cleared.
Two civilian complaints that were dismissed.
One departmental reprimand for failure to de-escalate.
Kerr still called that one a misunderstanding whenever someone mentioned it.
His clearance rate was above average.
His temperament wasn't.
He was parked near the east end of Mercer Lane when the dispatch call came through.
Possible disturbance.
Residential address.
Origin unclear.
Maybe suspicious activity.
Maybe a domestic concern.
The details were thin.
A neighbor had reportedly noticed unusual behavior and a man watching from a window.
That was it.
No weapon reported.
No screaming.
No victim asking for help.
No specific threat.
Thin enough that most officers would have treated the call as a low-priority welfare check.
Kerr treated it like a lead.
He pulled the cruiser to the curb two houses away.
Killed the engine.
Sat for a moment.
Studied the address.
Beige siding.
Small porch.
Blinds angled downward.
Nothing visibly wrong.
Nothing visibly right, either.
Kerr had been working long enough to know that quiet wasn't the same thing as innocent.
Sometimes quiet meant careful.
He got out of the cruiser and adjusted his duty belt.
His eyes swept across the property.
The lawn looked almost too neat.
The porch too empty.
No shoes beside the door.
No children's toys.
No decorative plants.
No mail visible.
It had the sterile quality of a space being maintained instead of genuinely lived in.
Kerr filed that observation away.
He was halfway up the front walk when he saw the man at the window.
Left side of the frame.
Partly obscured by blinds.
Watching.
Not a casual glance from somebody wondering who had stopped outside.
Steady observation.
The kind that suggested the man had been watching before Kerr even left the cruiser.
Kerr stopped.
The man didn't move.
Something tightened in his chest.
Not fear.
Alertness.
The instinct years on patrol had wired into him.
At least, that's what Kerr called it.
He told himself the stillness was suspicious.
He told himself the angle at which the man watched him meant calculation.
He told himself plenty of things during the few seconds they held eye contact through the glass.
What he didn't tell himself was to slow down.
Kerr continued toward the porch.
He knocked hard.
Not politely.
The flat of his fist struck the doorframe like an announcement.
"Police. Open up."
Nothing.
He knocked again.
Harder.
"Sir, I need you to open this door. I'm responding to a disturbance call. Open the door now."
The blinds shifted slightly.
The man remained inside.
Still watching.
Still not moving toward the door.
Kerr's jaw tightened.