Police allege Kim Henry, a 53-year-old Fullerton resident, is behind the hateful messages filled with spelling errors, threatening violence against Mexicans, Asians, blacks and Catholics.
"She's painted some very hateful and damaging messages out there that have affected a lot of members of the community," said Sgt. Rick Martinez of the Anaheim Police Department.
There have been nine separate cases of vandalism last month - hurtful words spray painted on or near businesses in Irvine, Santa Ana, Anaheim and Brea. The businesses targeted included two Catholic churches and the Orange County Housing Authority.
Police say surveillance video from the church parking lot in Anaheim seen exclusively on Eyewitness News helped identify Henry after a viewer called police.
Records show Henry had unrelated outstanding warrants from last year for assault and battery and hit and run. Now, she faces felony vandalism and hate crime-related charges.
Henry has been booked at the Orange County Jail, with bail set at nearly $70,000. Police say it is unknown what her motive may have been.
"She's obviously disturbed, troubled and very hateful by the messages that she has already conveyed," Martinez said.