UPDATE: 

The man named as Armando Alejandro Montalvo who was shot by police Monday afternoon at the WWE Performance Center after running toward a police officer with a knife was reportedly obsessed WWE Hall of Famer Lita, who had been working at the Performance Center for WWE Tough Enough in recent weeks.

Montalvo was arrested on August 4th after causing a disturbance at the centre, he was reportedly in possession of a huge sign for Lita and would often stand outside the building.

A video has also surfaced on Montalvo mixing his faeces and urine in milk and smearing it on the WWE Performance Center building.

ORIGINAL: 

The identity of the man shot outside the WWE Performance Center has been named as Armando Montalvo according to TMZ.

WWE filed a restraining order against Montalvo after he was caught spreading his faeces and urine on the building earlier in the month. He was also obsessed with a Diva and often turned up at the Center dressed in wrestling gear. Montalvo reportedly filmed himself mixing his faeces with milk.

Source: TMZ.com