BOISE - A Meridian man was sentenced to 15 years in prison Wednesday for the shooting death of his father-in-law.

Cameron Post will spend at least five years behind bars before he is eligible for parole, the Ada County Prosecutor's Office said.

Post was arrested on January 31, 2015 for the killing of 57-year-old Trent Spreier, who prosecutors say was unarmed at the time of the shooting.

Investigators told KTVB that Post and Spreier got into an argument about a vehicle the Post had borrowed from his father-in-law earlier in the day. That argument escalated at Spreier's Meridian home and Post shot Spreier in the face, police said.

MORE: Man accused of killing father-in-law outside Meridian home

Post was arrested and charged with second degree murder. In October, he pled guilty to a lesser charge of involuntary manslaughter and use of a firearm in the commission of a crime.

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