Maybe one of the mods can amend the title of the thread:

Man linked to Giffords shooting called 'very disturbed'

First Sgt. Brian Homme, who oversees Army recruiting in Tucson, said Loughner applied to enlist in December 2008 and was sent to Phoenix to take a test and physical. But “he was found to be unqualified so he never joined the Army,” Homme said.

He declined to say why Loughner was rejected, citing confidentiality laws.
Thank God.