According to the Los Angeles Times, all but a small group of protesters left after Trump finished speaking. It was this group that reportedly ignored orders to disperse, began throwing rocks and set a trash can on fire:
Around the Anaheim Convention Center, lines of mounted police moved through the streets, with several dozen protesters in front of them. Some had scarves covering their face, others taunted police officers. By 3 p.m., only a couple dozen protesters remained, with one person tearing down a stop sign near Katella Avenue.
Inside the center, after his speech was interrupted at one point by a protester, Trump paused for a moment and said: “The safest place to be in our country is a Trump rally.” He ended his speech to loud applause.
Earlier in the afternoon, a small crowd of Trump supporters who had been hurling racially charged remarks at a large group of demonstrators was escorted away “in the interest of public safety,” according to Sgt. Daron Wyatt, an Anaheim police spokesman. The group of about five people was asked to leave by police and did so voluntarily, Wyatt added.
Authorities said at least eight people were arrested outside the Trump rally on Tuesday. As police announced three unrelated arrests earlier that day, it was unclear how many of the eight were protesters.
Police have a line set up at Walnut and Katella. Most protestors gone. Just residents and media, for the most part pic.twitter.com/VQ9h9JoxJ0— Rob McMillan (@abc7robmcmillan) May 25, 2016
Yesterday, the scene outside a Trump rally in Albuquerque, New Mexico, descended into chaos. Later, Mayor Richard Berry placed the blame on a “few individuals who came to perpetrate violence, endanger others and damage property.”