An off-duty Immigration and Customs Enforcement (ICE) agent is accused of assaulting his former neighbor after a lengthy dispute turned violent last month, San Antonio police records and cell phone camera footage show.

Agent Tim Harrison was captured on camera June 10 walking onto the driveway of a Northwest Side home belonging to the parents of Cody Sparks and then striking Sparks.

"He walked onto my property, eyes locked, ready to rumble, which I did not expect," said Sparks.