BRYAN, Texas (CBSDFW.COM/AP) — A Central Texas man must serve 50 years in prison for the 2015 abduction and killing of a convenience store clerk who was attacked during a robbery.

Nathaniel Tillery was sentenced Monday in Bryan after pleading guilty to murder in a plea deal.

The case involves the March 2015 death of 55-year-old Kevin Garcia, who was assaulted at a store in College Station.

Prosecutors say Garcia was then tossed in the bed of his own pickup truck and driven to the Fort Worth area, where Tillery had a relative.

The 39-year-old Tillery, who's from Bryan, was arrested about 10 hours after the attack. Garcia died later at a hospital.

Tillery was also sentenced to 50 years for aggravated assault on another inmate while jailed. The sentences will be served concurrently.

(© Copyright 2018 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)