DALLAS (AP) - The lead investigator in a white Dallas police officer's fatal shooting of a black neighbor in the man's home says he doesn't think the officer committed a crime.

The jury in Amber Guyger's murder trial wasn't present Wednesday when the Texas Department of Public Safety's David Armstrong said he believed she acted reasonably after perceiving Botham Jean as a threat. His comments came while being questioned by Guyger's attorneys on the trial's third day.

But State District Judge Tammy Kemp ruled that the jury couldn't hear the Texas Ranger's opinion of the reasonableness of Guyger's actions.

Guyger, who was off-duty but in-uniform when she shot Jean last September, has said she mistook his apartment for her own.

In the jury's presence, Armstrong testified Guyger lived directly below Jean and that going to the wrong apartment was common at that complex.

Copyright 2019 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.