"I think our law enforcement did exactly what training taught them  to do. … How subsequent events played out, that's another thing for what I hope  to be a really complete report on the incident to educate  everybody." 
"Once the suspicious individual report came out, and our police  arrived in the immediate area of the building, they did do a perimeter search —  were unable to see the person on top of the building from the vantage  point," Knights explained. "So one of our other police officers …  literally boosted one of our [other officers] up high enough in the air to grab  hold of the edge of the roof."
The officer was able to pull himself up so that his "head was above  the roof" because there was no other way to access the roof at that  moment. The approximate distance from the ground to the edge of the roof where  the officer got hold is 12 feet, Knights said.
The officer "did observe an individual on the roof," who  "was identified as having a weapon" and "did point that firearm  at our officer," Knights said. 
The officer took a defensive position from where he was hanging on the  edge of the roof, ducked his head, and lost his grip, at which point he fell  "approximately eight feet" to the ground and sprained his ankle, the  township manager explained. 
"Both the lifting officer and the prone officer both called in [and]  identified the individual on the roof as being armed."
Knights said he believes local officers' ability to identify the shooter  did "minimize as best as possible the overall situation."
"The harshness of criticism from both sides of the spectrum has been  pretty brutal and relentless," he said. "It's been going on for  roughly two days now. Again, I think when the entirety of the investigation is  done and we have the full, complete story of how this whole event unfolded,  hopefully those that are … quick to send a hate email can send back an apology  just as quickly."