Patrick Campbell was working in Washington, D.C., when the airplane crashed into the Pentagon on Sept. 11, 2001, killing nearly 200 people and injuring dozens more.
It was then -- when he wanted to help the wounded, but didn't know how -- he decided to become a medic.
Four years later, Spc. Patrick Campbell has returned from serving a year in Iraq. The law student and former political aide joined the Army National Guard, trained as a combat medic and volunteered to go to war. Campbell, a lifelong Camarillo resident and graduate of University of California, Berkeley, was assigned to an infantry unit from Louisiana.
On Tuesday, Campbell, 27, returned to his high school -- Adolfo Camarillo -- to tell students about his experiences, including going from the war in Iraq to U.S. cities devastated by hurricanes Katrina and Rita.
"Life in Iraq: It's hot, boring and sometimes just plain scary," he said. But going there gave him the opportunity to save lives, hand out gifts to dozens of children and satisfy a need to serve.
His unit spent more than a year in Baghdad patrolling streets, carefully negotiating makeshift bombs on the roads. There were close calls, but he never had to treat a U.S. soldier with a life-threatening injury. He did, however, treat several Iraqis for gunshot wounds.
Campbell told students he discharged his weapon about two dozen times over the year, and answered "no" when someone asked if he had killed anyone.
Student Arleane Ocon, 15, said she walked away from Campbell's presentation thinking that everyone should take advantage of their life.
That's what Campbell said he hoped they would remember. For him, the lesson was reinforced when his unit returned to the United States.
When Hurricane Katrina hit the Gulf Coast and the levees broke, flooding New Orleans, Campbell said, troops in Iraq were glued to news broadcasts. It was all they talked about for weeks. His unit flew back to Louisiana days before Hurricane Rita hit. Everyone was evacuated and after the hurricane passed through, many spots were left without power.
As his buddies went to help family and friends, Campbell volunteered to help with relief efforts for a day, handing out water and ice. It felt good to be doing something productive, he said.
"That's why I joined the National Guard -- things like hurricane relief," he said. "It felt good not to have a weapon. I felt a sense of peace that I finally am doing what I thought I would be doing when I joined the Army."
Still waiting for his paperwork releasing him from active duty in Iraq to be processed, he flew home to Camarillo last week. In January, he plans to go back to law school.
Donna Maygren helped organize Campbell's talk to the students Tuesday. "The theme in my class is: One can make a difference," she said. "He embodies that."