This deliberately staged "demonstration" was designed, orchestrated, and edited to support a specific agenda. (Gloves, bad holster, restrictive cover garment, specific targeting of the subject and, just to be sure, a backup bad guy.)
That Diane Sawyer was an active, willing participant in this farce simply reinforces the fact that she is not an actual journalist, but an advocate for the left. (I remember her from a previous "news story" about deadly bullets in which she used a graphic of an expanded bullet about the size of a grapefruit spinning and churning its way through flesh as it zig-zagged its way through a human torso silhouette.)