A detailed complaint unsealed in San Francisco Superior Court alleges that a landlord and his son conspired to murder a tenant after failed attempts to evict him, then carried out an execution-style killing. According to the lawsuit, Phillipe Chagniot, dressed in dark clothing and a mask, rode a bicycle to the victim's home around 5 a.m.
on May 17. He is accused of spray-painting nearby security cameras, setting fire to the victim's car, and then shooting the victim, identified as Bigone, in the back of the head as he came outside to extinguish the blaze.
The complaint states Chagniot stood over the victim and fired again. Bigone was pronounced dead at the scene.
The San Francisco District Attorney's Office has charged Chagniot with murder, arson, and several weapons offenses, including possession of a silencer and a large-capacity magazine. The lawsuit further alleges that within days of the killing, the defendants' attorney moved to take possession of the property, suggesting a motive tied to the ongoing dispute.
The case has drawn significant attention to landlord-tenant conflicts in the city.