Monday, June 1, 2020
May 31, 2020 (La Mesa) -- The cozy bedroom community of La Mesa, long likened to the fictious Mayberry RFD town of TV fame, lost its innocence on Saturday night when rioters overran the city. Multiple arson fires and widespread looting swiftly overwhelmed local police and firefighters after protests over police violence earlier in the day. Mutual aid proved inadequate, leaving La Mesa without adequate resources to defend the city.
It seems it was outside people coming in. See the comments to this story.