CARROLLTON, Texas (CBSDFW.COM) – Carrollton Police have arrested a Richardson man for shooting a co-worker to death outside that man’s home in Carrollton.

Tonniel Marquis Brown is charged with murder for the death of 56-year-old Jose Ruiz, who was shot to death when he left his apartment.

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Tonniel Marquis Brown

It happened shortly before 5:45 a.m. Tuesday, January 23, 2018 at 3420 Country Square Drive.

screen shot 2018 01 23 at 4 16 30 pm Man Arrested For Murder Of Co Worker In Carrollton

Carrollton apartment shooting (Carrollton PD)

Investigators believe the motive was a workplace dispute between the two men the day before the shooting.

Brown is currently held in the Carrollton City Jail on $100,000 bond.

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