Agents were pursuing an immigrant when they killed Alex Pretti. Now, he shares his story.

Jose Huerta Chuma is a man in hiding — and he's also a man in distress. He's been replaying the fatal shooting of Minneapolis resident Alex Pretti over and over again in his mind, wondering if he could have done something differently and if there's something that "would have saved that life." In:

Jose Huerta Chuma is a man in hiding — and he's also a man in distress. He's been replaying the fatal shooting of Minneapolis resident Alex Pretti over and over again in his mind, wondering if he could have done something differently and if there's something that "would have saved that life."

The 41-year-old immigrant from Ecuador, who said he has been in the U.S. for over two decades, described witnessing the shooting after hiding inside a local business. The Department of Homeland Security has described Huerta Chuma as a criminal living in the U.S. illegally who was the target of the Border Patrol operation that led to the encounter with Pretti on Saturday, Jan. 24.

"I think, maybe if I hadn't gone to that place, or I don't know, a little later or a little earlier, I mean, that never would have happened," Huerta Chuma told CBS News during a phone interview conducted in Spanish.

Asked if he feels some sense of guilt, he said, while crying, his voice fraught with emotion: "I do feel guilty, I do feel bad. I saw stories about the man and I saw a very good person."

DHS officials have described Huerta Chuma as a "violent criminal illegal alien" on the loose. Documents reviewed by CBS News indicate Huerta Chuma's record includes traffic violations, and that he pleaded guilty to a disorderly conduct misdemeanor offense in 2018. The New York Times reported, citing Minnesota court documents, that the plea was linked to a domestic violence arrest, and that the offense was later expunged.