Seven people of Laotian descent were fatally shot on September 7, 2020, at an illegal marijuana grow site in the 45000 block of Highway 371 in Aguanga, California. Deputies arrived about 12:33 a.m. and found six dead at the scene and a seventh, critically injured woman who later died at a hospital. Among the victims was 48-year-old Souphanh Pienthiene; the others were identified as Samantha Sourignasak, 44, Khamphour Nanthavongdovane, 53, Phone Chankhamany, 54, Thongpath Luangkoth, 47, Vikham Silimanotham, 64, and Khamtoune Silimanotham, 59. Investigators reported the property was being used to manufacture and harvest marijuana illegally, with over 1,000 pounds of processed marijuana and several hundred plants found, and described the operation as highly organized.

Authorities characterized the killings as a targeted attack that involved gang members of Laotian descent from the San Diego area and classified the incident as a home invasion robbery, though nothing was reported stolen. No suspects were immediately identified and the case went cold; in December 2024 investigators reported new leads including a mid-size dark-colored SUV believed to be involved. Anyone with information about the shooting or the vehicle is asked to contact detectives.