The Brief Dennis Arguello-Acosta was sentenced to 12 years in prison for the death of Deputy Kenneth Lewis. The deputy died days after being hit by a vehicle earlier this year. Police say he was off-duty but in uniform when he stopped to help people following a separate crash. A man is set to serve over a decade in prison for a crash that killed a Fort Bend County deputy earlier this year. Guilty plea for death of Fort Bend County deputy What we know: Dennis Arguello-Acosta pleaded guilty to a charge of Failure to Stop and Render Aid for an accident involving death. The charge is for the February death of 11-year Fort Bend County Deputy Kenneth Lewis. Arguello-Acosta has agreed to a 12-year prison sentence. The backstory: Deputy Lewis passed away two days after he was hit by a vehicle in late February. Houston Police said Lewis was off-duty but in uniform at around 3:40 a.m. when he stopped to help people who were involved in a separate crash. While he was helping, a third vehicle struck him and left the scene. The Department of Homeland Security announced Arguello-Acosta's arrest in March. The FBI and other law enforcement agencies allegedly received a tip about him on March 11, and he was eventually taken into ICE custody. For more on Deputy Lewis, click here. #fox26houston #crimewatchhouston