WICHITA, Kan. (AP) — A man has been sentenced to eight years and four months in prison in the fatal shooting death of a Wichita concrete company worker.

The Wichita Eagle reports that 43-year-old Deon Nolan Hale was sentenced Wednesday for voluntary manslaughter in the death of Efren Antonio Villarreal-Alvarado.

Authorities have said robbery motivated the February 2014 shooting of the 43-year-old as he sat in his truck.

The sentence imposed was the maximum allowable. But the victim’s ex-wife, Dawn Villarreal, said it was too short and that “the system as failed us.” Another man, Donnie Lalonde, was sentenced previously to 24 years in the killing.

The homicide conviction is the second for Hale, who also goes by Auriel Huntstwobears. The first was second-degree reckless murder for a 1997 killing in Douglas County.