Both were wounded by gunfire, one of them -- Nickolas Wilt -- critically, as he was shot in the head and has undergone brain surgery.   

In the press conference that accompanied the initial release of the video, Deputy Chief Paul Humphrey noted that these first responding officers were hampered by a lack of visibility due to the difference between the bright outdoors and the darkened interior lobby where killer Connor Sturgeon had been waiting to ambush them.

Glare from the floor-to-ceiling windows also made it difficult to pinpoint the threat. After Sturgeon's shots at subsequent responding officers shattered the glass, Officer Cory Galloway was able to engage and kill him.