While still not publicly confirming that it was the firm that helped the FBI crack the San Bernardino shooter’s iPhone, Cellebrite has offered to help a father gain access to his deceased son’s iPhone 6, CNN reports. Leonardo Fabbretti said his 13-year-old son Dama had given him Touch ID fingerprint access to the phone before his death from bone cancer, but that the phone now required his son’s passcode to unlock after a restart.…