As Twitchy reported late last night, Ferguson Police Chief Tom Jackson briefly marched along with Michael Brown protesters before “all hell broke loose,” and arrests began after a demonstrator allegedly attempted to fight the police chief.

Activist Shaun King and St. Louis alderman Antonio French claim that a YouTube video proves that no one provoked the police chief.

To others, the YouTube video verifies the theory that Chief Jackson was drunk when he joined the march.

Also going with the drunk theory: Missouri General Assembly member Maria Chappelle Nadal and MSNBC contributor Goldie Taylor.

Here’s another angle on the police chief and the mayhem surrounding him.