Jonathan Full said he didn't care if 200 soldiers walked in. He was going to take care of every single one.
The Fulls' stepbrother died by suicide the previous week. He was a former U.S. Marine who battled PTSD.
Since then, Jonathan Full said it's been on his mind to buy a service member’s meal.
Stephen Full said his brother’s gesture is inspiring.
"By seeing his eyes well up and, of course, mine doing the same thing -- and being able to use it for a teachable moment for kids, it's in remembrance of our brother," Stephen Full said.