On February 26, 2015 at 11:52 AM, the Sonoma County Sheriffs’ Office dispatch received a call from a man stating that there was a person in a residence and there was blood visible.
Deputies and medical personnel responded to the 900 block of Rose Avenue, in Penngrove. Inside the home, they found an elderly woman deceased in a chair. The house was in complete disarray.
Detectives from all of the Sonoma County Sheriff’s Office Investigations Bureau responded. The Violent Crimes Investigation unit assumed the lead in the case. Because of the suspicious conditions inside the home, this case is being investigated as a homicide.
The woman found deceased within the home is identified as Olga Mary Dinelli, an 84 year old. She lived at that residence for the past several decades with her brother, Larry, who was not at home when the crime occurred. He has been located and informed of her death.
The Sonoma County Coroner’s Office will conduct an autopsy this morning to determine the cause and manner of Olga’s death. The Violent Crimes Investigation unit is working diligently on the circumstances surrounding her death.
This is an active investigation. We are asking the public’s help in finding Olga’s red 1998 Lexus SC400. That vehicle is missing from the property. It is a 2-door with a license plate of 4HZF060, similar to the one in the attached photograph. If you see her vehicle, do not approach the occupants. Please call your local law enforcement agency immediately.
The Sonoma County Sheriff’s Office encourages anyone with information pertaining to this case to call the investigations Tip Line at 707-565-2185. The phone takes messages and you can remain anonymous if you desire.
Case #150226-016
Prepared by Sergeant Cecile Focha
Media Relations / PIO
