Pettengill was a 23-year-old vet who had planned to make the army a career, but then he got a severe back injury in Iraq, and that forced him to take a medical discharge.
Pettengill var en 23-årig krigsveteran der havde planlagt at gøre karriere i hæren, men så fik han en alvorlig rygskade i Irak, og det tvang ham til at tage en  helbredsmæssig hjemsendelse.