India, June 23 -- A former Marine says he feels "betrayed" after a video showed his father being pinned to the ground and repeatedly punched by a federal immigration agent in Santa Ana on Saturday.

The video sparked a protest with dozens of people demanding that the agents leave Santa Ana. An online fundraiser was also launched to help pay the man's legal expenses.

The man in the video is a 48-year-old landscaper named Narciso Barranco. He was stopped on the street, and his son, 25-year-old Marine Alejandro Barranco, told NBC News on Sunday that two of his brothers also serve in the US Marines, currently stationed at Camp Pendleton.

"I feel betrayed," Alejandro said. "My dad has no criminal history. He wasn't doing anything bad. He was...