PORT ORCHARD, Wash. (AP) — A Washington state man has been sentenced to more than 31 years in prison for the fatal shooting of his former boss.

31-year-old Brian Glaser was given the maximum sentence in Kitsap County Superior Court Monday for shooting Donald Duckworth in August 2018.

Glaser was convicted of first-degree murder in May.

Authorities say it was the first murder in about 20 years on Bainbridge Island.

Prosecutors say Glaser stalked Duckworth to a work site on and waited until they were alone.

Authorities say Glaser fired a full magazine of pistol rounds into the 66-year-old well driller.

Prosecutors say Glaser killed Duckworth several months after quitting his job at a company started by Duckworth’s brother. A definite motive for the killing was not determined, but Glaser admitted to the killing and even led police to the weapon he used.