Re: FBI can't unlock smartphone
His "criminal record...should have prevented those purchases."
BUT: "the Air Force also acknowledged it inexplicably failed to enter his conviction into a government database that all licensed firearms dealers are required to use to screen prospective gun buyers for their criminal history.
Federal law prohibits anyone from selling a gun to someone who has been convicted of a crime involving domestic violence against a spouse or child."
(https://www.reuters.com/article/us-texas-shooting/texas-church-gunman-escaped-mental-facility-in-2012-while-facing-court-martial-idUSKBN1D715Q)
SO, he SHOULDN'T have been able to buy a gun, but the system FAILED the people...
Your point remains: what this has to do with his cell phone, surely no one will explain to us.