On May 23, 2010, Border Patrol Agent Mark F. Van Doren was in a vehicle accident while on patrol when his vehicle collided with a large bull on rural Farm-to-Market Road 755 in Brooks County, Texas. After the impact, his vehicle veered off the roadway and hit a tree. Agent Van Doren died on May 24, 2010, as a result of his injuries. His partner was critically injured in the crash, but survived.
Agent Van Doren was a native of Garden City, Michigan. He was a member of the 849th Session of the Border Patrol Academy, assigned to the Falfurrias Station within the Rio Grande Sector.
Agent Van Doren is survived by his three children, mother, father and two brothers.