An Associated Press reporter witnessed the attack.
He then gets into a skirmish with the man in an attempt to retrieve the hat.
Reich had explained, "I was there for part of last night, and I know what I saw and those people were not Berkeley students". They were not from the campus, and I've heard, you know, again, I don't want to say factually, but I heard that there was some relationship there between these people and the right-wing, and the right-wing movement that is affiliated with Breitbart News. I've never seen them before. The answer, I believe, is no. "Today, the Berkeley College Republicans' constitutional right to free speech was silenced by criminals and thugs seeking to cancel Milo Yiannopoulos' tour". Carlson doesn't challenge that, because what he finds noteworthy is the complete lack of regard for Yiannopoulos' free speech rights by people, particularly at universities where the promotion and preservation of free expression is literally a objective of existence, who are seeking to deny him a platform.
University officials said police chose to stay back to prevent injuring innocent protesters and bystanders who could have been hurt if officers waded into the crowd.
Protesters tore down barricades, let off fireworks and set the campus ablaze during the furious protests over the conservative Breitbart editor.
After police removed the crowd from campus, protesters smashed windows at several banks in downtown Berkeley.
Some students have criticized that tactic, according to CBS San Francisco, but university officials defended the decision, arguing that staying back prevented injuries to protesters and bystanders. They played their assigned role in his show, giving he and his ilk video ammunition for their case that progressives oppose free speech. "They were not from the campus", Reich said.
Comments by Mr Yiannopoulos, a vocal supporter of Mr Trump, have been criticised as racist, misogynist, anti-Muslim and white supremacist. He was banned from Twitter after leading a harassment campaign against "Ghostbusters" actress Leslie Jones. That is what Mayor Arreguin did when he characterized Yiannopoulos as a bigot who engages in hate speech and isn't welcome at Berkeley just prior to his event.
The Breitbart editor wrote on Facebook that he and his team were safe after being evacuated from campus.
Sure enough, two hours before "freedom of speech" was set to speak, the Cal police determined "it was impossible to maintain order given the level of threat, disruption and organized violence", which was to be held in a University building that bears the name of Dr. Martin Luther King.