Duncanville police on Wednesday released a sketch of the person who may have shot and killed a 74-year-old Duncanville woman who took shelter from her attacker behind her front door.

On March 6, Barbara Vincent Strain opened the door to her home in the 1300 block of Highland Drive and didn't recognize the person standing in front of her. She hurriedly shut the door, but the suspect shot anyway; she was mortally wounded in her entryway.

Last week, Oak Farms Dairy announced it would donate $10,000 to a reward fund for information leading to an arrest and indictment. That number quickly swelled to $15,000 as the Duncanville Police Department released a brief description of a possible suspect.

Investigators believe a man fired the fatal shots. He was either Hispanic or white, standing about 5'5'' with an "average build," last seen running from the well-liked great-grandmother's home donning blue jeans and a grey hooded sweatshirt. On Monday, police released the image posted above this story.

Anyone with information as to whom this individual is should call Duncanville Det. David Moon at 972.780.5037.

Strain was a respected resident who housed her children, grandchildren and great-grandchildren all inside her home. As News 8's Carla Wade reported the day of the murder, five of her grandchildren were inside the home as she was brutally gunned down.

Police have not released a motive. However, the Duncanville Fire Department still has an open case from when someone hurled a small Molotov cocktail at her front door in January. That incident caused minimal damage and no one was hurt.

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