Colby Robinson, 26, was able to evade arrest Tuesday morning in DeSoto when officials with the U.S. Marshals Fugitive Task Force tried to take him into custody.
A police chase began later after Robinson was spotted at a DeSoto 7-Eleven. A clerk there recognized Robinson from photos that had been circulated by DeSoto police.
The clerk called 911, and a co-worker, Brian Watson followed Robinson.
"I waited for the U-Haul [Robinson was in] to pass," said Watson. "I got in my car and I chased it down and I got the license plate number and came on back to the job."
Officers caught up with Robinson again around 9:30 p.m. in the Redbird area of Dallas. The officers chased Robinson to the Jack in the Box on I-35 and Camp Wisdom Road.
Police said officers pursued Robinson on foot for a few blocks. There was an altercation and he was fatally shot.
Police incident report call sheets indicate that Robinson did have a weapon.
The officers with the DeSoto Police Department, Officers Hammel and Siegler, were not hurt and have been placed on administrative leave. They've been on the force since 2010.
Robinson was accused of killing Gary Pham and his sister-in-law, Susie Pham. Her husband was also wounded.
Portland police said the victims were involved in the medical marijuana industry, but investigators aren't sure if that played a role in the attack.
"I don't think he should have been shot down by police the way he was, because like I say, I just think he went to Portland, Oregon for his birthday, and I just think he was a good kid," said Gwendolyn Dixon, who identified herself as Robinson's aunt. "I don't know what happened here. Don't…get me wrong."
A woman who was in the drive-through lane at the Jack in the Box, 20-year-old Charae Bonner, was caught in the gunfire. She was taken to the hospital with non-life-threatening injuries.
She was in the car with her 4-year-old daughter and her mother at the time. Leon Bonner, Charae's grandfather, says a stray bullet fractured her cheekbone.
Investigators spoke to witnesses Wednesday morning who saw the events unfold, including Shannon Bell, the owner of an automotive shop.
"Ran through the parking lot," said Bell. "My guy was in the shop working, ran to the adjacent side of the property, jumped another fence, where the police chased him…we heard shots. He heard shots."
Dallas police are investigating because the officer-involved incident happened in Dallas.
The U-Haul that Robinson was in was later found at a Days Inn in DeSoto near I-35 and Wintergreen. A person there was taken into custody on outstanding warrants from another city.
That person was taken to the Dallas Police Department and questioned by police.