This article may be of interest, tho it is clearly miss-titled. Should be: One Year Later, Experts Dig Deeper and Find No Motive for Las Vegas Mass Shooting. As we said earlier, the attack has also been miss-labeled as domestic terrorism by the START Program at Univ. of Maryland (which clearly it is not as there has been no political motive discovered).

One Year Later, Experts Dig Deeper to Find Vegas Shooter’s Motive
One Year Later, Experts Dig Deeper to Find Vegas Shooter’s Motive