 fire trucks, and police cars taking part in a funeral procession for the 50-year-old as investigators search for a motive behind the attack. There's new concerns over the 20-year-old shooter's use of encrypted applications. Republican Congressman Michael Waltz says these apps have their servers based overseas and could have been used by the shooter to speak to anyone worldwide. The shooter used an encrypted app called Discord, but the FBI can no longer confirm whether he used the gaming encrypted app Steam.