The capital murder trial of 38-year-old Matthew Johnson of Garland opens Monday in Dallas.
Prosecutors are seeking the death penalty against Johnson over the slaying of 76-year-old Nancy Harris, who was attacked at the Garland store where she worked. Security video captured part of the incident.
Police saw a burning Harris step from the station and sprayed her with a fire extinguisher. She reported being robbed, doused with a flammable liquid and set afire. Harris, who was able to describe the suspect, died several days after the May 20, 2012, attack.
Johnson was arrested as police investigated reported break-in attempts near the gas station.
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