This was released last night...
Tuesday morning, the Durham County Sheriff’s Office, which is in charge of protecting the site, released a statement announcing that it is seeking charges against those who toppled the statue.
The Durham cops took video of the event Monday, but decided not to intervene, citing “the potential risk of injury to the public and officers should deputies attempt to control the crowd.”
A lie. One or Several Officers ordering people to "Get Back" would have caused the crowd to disperse, especially if he drew his firearm to emphasize the point.