Mr Alanis's death, and the violent clashes that ensued at those cannabis farms, are the latest examples of the kind of chaos that has swept across southern California since the beginning of June, when immigration raids began to intensify in the region.

Border Patrol agents raided a Home Depot in Sacramento on Thursday, alarming elected officials and prompting a searing rebuke from Gov. Gavin Newsom's office, who said they should do their jobs "at the border".