A Marine Iraq vet was today arrested in Brooklyn after police found him toting a duffel bag containing "a shotgun, a cache of ammunition, a laser and a machete."
It's not clear what he was doing, but his mother told NBC 4 New York on Wednesday that he has a history of mental illness. She said he feels responsible for protecting New Yorkers and is burdened by guilt that he let 9/11 happen.
His mother also told reporters he served three tours of duty in Iraq, and that he is very kind, and not violent. [HT: @wjhenn]