Dorner, a former LAPD officer, is accused of going on a shooting rampage against law enforcement and their families after being fired. Four people died during the days-long killing spree. It all came to an end Tuesday night when police said Dorner shot himself during a standoff in a cabin in Angelus Oaks.
Protesters said they don't agree with his actions, but believe he was treated unfairly. Some said there is corruption within the LAPD and it has gone too far. Others said they want allegations of racism, brutality and corruption in Dorner's manifesto to be investigated.
"Dorner did what he did because that's what he felt he needed to do, but I think that's a little extreme, there's always a peaceful method of dealing with the situation, but it's getting the right people to listen to you," said protester James Pedregon. "We're not here against the LAPD, there are some good officers out there."
LAPD Chief Charlie Beck has already ordered the department to reopen the investigation that cost Dorner his career.
The department also plans to investigate allegations Dorner made in his online manifesto.
Dorner is suspected of killing four people, including Riverside Police Officer Michael Crain and San Bernardino sheriff's Det. Jeremiah MacKay.
Crain was laid to rest Wednesday. The funeral for MacKay is set for 11 a.m. Thursday at the San Manuel Amphitheater at 2575 Glenn Helen Pkwy. in San Bernardino.
There will be also be a joint service for Monica Quan and her fiancé, Keith Lawrence, on Feb. 24 at Concordia University's gymnasium. The two were found dead in a car in Irvine on Feb. 3. Quan was the daughter of a retired LAPD captain who represented Dorner during the disciplinary hearing that ended his career.