Video and an account from a good Samaritan shed new light on a car crash that escalated into a violent confrontation in Carlsbad over the weekend. Witnesses and video also indicate Chavez then walked to the passenger side of the truck and stabbed the male passenger multiple times. Then, he went to the passenger side and stabbed him, stabbed him like five times," good Samaritan Isaac Mandlawi said. This story was originally reported for broadcast by NBC San Diego. AI tools helped convert the story to a digital article, and an NBC San Diego journalist edited the article for publication.