According to KTLA, 92-year-old Rodolfo Rodriguez was walking after eating dinner on the Fourth of July.
Rodriguez was released from the hospital Thursday.
Family members said the woman pushed Rodriguez to the floor and beat him with a brick.
The woman then picked up a brick and started beating Rodriguez with it.
The Los Angeles Sheriff's Department is still investigating.
Rodriguez reportedly has a broken cheek bone, broken ribs and has suffered bruises all over his body.
Rodriguez does not speak English, and has not commented on the incident, though family members such as his grandson Erik Martinez have been outspoken about the brutal nature of the incident.
Sheriff's Deputy D'Angelo Robinson said in a statement that authorities are now searching for five suspects: four men and the woman seen in the video. 'There was what appears to be a four-year-old child there who witnessed the entire thing.
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The fundraiser has far surpassed the initial $15,000 goal, with donations pouring in to help Rodriguez.
"He is doing really bad, has a lot of bruises on his face and a broken cheekbone", Mendoza wrote on the GoFundMe which launched July 6.
The page has been shared just under 7,000 times on Facebook.
"Go back to your country, why are you here, bad things", the witness said the mother told Rodriguez, who is a legal US resident, according to the station. A group of young men bounded down the street, accusing Rodriguez of trying to snatch the young girl.
A neighbor saw the attack and ran out of her home to scream at the suspects.
"It was terrible, terrible, terrible", she said. Mendoza told the outlet.
A 92-year-old Mexican national visiting his family in Los Angeles was beaten and told to go back to Mexico, according to reports. "There's no harm that he meant for you to treat him the way you did". "That's why we're still in shock, as you can see he's badly injured".
The witness spoke to KCBS in L.A. and said she asked the woman why she attacked the man.