Video posted on Facebook shows the man on the ground after the attack on the Fourth of July.
The attack has left neighbors stunned.
"He's an old guy. Nobody shouldn't even harm him 'cause I wouldn't want to see nobody hurting my father or mother. I wouldn't want to see somebody jump on an older guy like that," neighbor Margie Morris said.
A person who says he is the man's grandson identified the victim as Rodolfo Rodriguez on a GoFundMe page that has raised more than $220,000 as of Tuesday afternoon.
"He is doing really bad, has a lot of bruises on his face and a broken cheekbone," the grandson wrote.
One eyewitness who also took video, but did not want to be identified, said Rodriguez was beaten with a piece of concrete.
"Oh my god. It's too offensive," she said.
According to the eyewitness, the man was walking down the sidewalk and he passed the woman. The witness said for some reason that upset the woman and that's when it started.
"The woman pushed him and dropped him. She took the block of concrete and hit him in his head many times. That's why it was very bad," the witness said.
She was able to get a picture of the woman who was walking with a little girl. In that photo, she is seen holding a piece of concrete.
"She see me in my car and walking to me and she told me, 'Oh, what are you doing? What are you saying? Why are you taking my picture?'" the witness said.
Detectives from the sheriff's department interviewed the victim, and they are looking for witnesses to come forward.
Some information from KABC-TV.
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