Philippe Henri Chagniot, a 68-year-old retired dentist, was arrested on May 27–28, 2026, and charged with murder in the killing of his tenant, Eric Bigone, 58.

What Happened:

• On May 17, 2026, at around 5:21 a.m., Bigone was shot in the Outer Sunset neighborhood (2500 block of 46th Avenue) as he was leaving for work.
• Surveillance footage showed a masked suspect on a bicycle carrying a long gun (possibly a rifle or shotgun) approaching and shooting the victim in an apparent ambush.
• Eric Bigone was a laborer who rented a home owned by one of Chagniot’s relatives. Chagniot acted as the landlord.

Key Details:

• Chagniot was booked into San Francisco County Jail on suspicion of murder.
• Police executed a search warrant at his residence and seized evidence.
• The motive has not been publicly confirmed, but sources indicate there had been past issues between the landlord and tenant.

The case gained attention due to the bizarre circumstances — a masked shooter on a bike in a quiet residential area, later revealed to be the victim’s own landlord, a retired dentist.

This remains an active investigation. Chagniot is presumed innocent until proven guilty in court.

The story has been widely covered by the New York Post, San Francisco Standard, KTVU, and KRON4