JACKSONVILLE, Fla. -- Andrew Coughlan returned from the war in Iraq without a scratch.
But the guilt of making it out alive, when friends did not, was a wound that cut deep.
"Suicide, homicide...were thoughts that I had quite a bit," says Coughlan.
The veteran was eventually diagnosed with Post Traumatic Stress Disorder.
"I was dealing with a lot survivor guilt," says Coughlan.
On Monday in Daytona Beach, we saw how tragic the disorder can be.
A 28-year-old veteran from Iraq shot and killed his wife before taking his own life.
The soldier's family says he suffered from PTSD.
"They will have trouble at work because they are so full of anxiety," says Psychologist Justin D'Arienzo, who specializes in treating PTSD.
Dr. D'Arienzo says the toughest part is getting veteran to come in and seek help.
"I've seen Officers and Chiefs in the military and they are the ones who have the most trouble coming forward because they are use to putting other people first instead of them," says Dr. D'Arienzo.
Coughlan works for the Wounded Warrior Project and helps others who face the same challenges when they get home from war.
"To this day, I still have nightmares. I still get angry, but I know that it can get better," says Coughlan.
An estimated 300,000 veterans returning from Iraq and Afghanistan have PTSD.
