VISALIA, Calif.—A Tulare County jury has determined that a Central Valley man was legally sane when he killed a sheriff's detective, but he still won't face the death penalty.

Jurors deliberated just 20 minutes on Thursday before dismissing claims by 25-year-old Jorge Banda that he was not responsible for the killing of Tulare County sheriff's detective Kent Haws.

Last week they needed only five hours to determine that Banda was guilty of the 2007 killing.

That Banda shot Haws never was in dispute, though he pleaded not guilty by reason of insanity. The two-week trial was to determine his level of culpability.

Officials say because Banda's IQ is less than 70 he is ineligible for the death penalty.

He will be sentenced October 18 to life without possibility of parole.