Derick Lee Sedivy, 24, will spend nine months in jail for the May 10, 2013, shooting death of his cousin.
Sedivy pleaded guilty last month to involuntary manslaughter. He had been drinking at an Orchard Street home when Austin Tyler Blankenburg, 20, of Kuna was shot in the head. He died the next day.
In exchange for his plea, prosecutors dropped a charge of use of a deadly weapon during the commission of a felony.
Sedivy faced up to 10 years in prison for involuntary manslaughter. The prosecution recommended one year in jail, followed by 10 years of probation. Fourth District Judge Patrick Owen on Friday shortened the sentence recommendation and did not impose probation.