Woman found dead at San Jacinto home leads to murder investigation

SAN JACINTO, Calif. — Authorities have confirmed they are investigating the murder of a woman whose body was found at a private residence on the 600 Block of Groveside Dr. in San Jacinto Sunday evening, July 5.

No arrests have been made in the woman’s homicide, which happened southwest of Cottonwood and S. Sanderson avenues and between two small neighborhood parks, Tamarisk and Terrazzo; which are both within short walking distance from the home where the woman’s body was discovered.

The incident was the second of two homicides to rock the San Jacinto valley on Sunday. The first deadly encounter happened earlier in the morning when a 15-year-old San Jacinto boy and 25-year-old Banning man became involved in a fight that led to both subjects shooting each other. That incident ended with the teen’s death and the adult hospitalized with non-life threatening gunshot injuries.

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Deputies from the San Jacinto Sheriff’s Station were dispatched to the residence at 9:30 p.m., after receiving reports of a deceased woman inside a home, Riverside Sheriff’s Central Homicide Unit Sgt. Rick Espinoza has since reported.

When deputies arrived they found the lifeless body of a woman who has since been identified as 47-year-old, Marie Hannah, of San Jacinto.

Based on the woman’s visible, but unspecified injuries, Sheriff’s Central Homicide Unit investigators responded to the scene and assumed the investigation. 

Citing the early and ongoing nature of the investigation, Espinoza declined to provide any further details as of this report.

SEE RELATED: Shootout between San Jacinto teen and Banning man leaves teen dead

Anyone with information regarding this investigation is encouraged to contact Central Homicide Investigator Vasquez at (760) 393-3529 or (951) 955-2777. Callers can refer to incident file number I201870162 and can remain anonymous.

This is a developing story that will be updated as new information is available.


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Trevor Montgomery, 48, moved in 2017 to the Intermountain area of Shasta County from Riverside County and runs Riverside County News Source and Shasta County News Source. Additionally, he writes or has written for several other news organizations; including Riverside County based newspapers, Valley News, (the now defunct) Valley Chronicle, Anza Valley Outlook, and Hemet & San Jacinto Chronicle; as well as Bonsall/Fallbrook Village News in San Diego County and Mountain Echo in Shasta County.

Trevor spent 10 years in the U.S. Army as an Orthopedic Specialist before joining the Riverside County Sheriff’s Department in 1998. He was medically retired after losing his leg, breaking his back, and suffering both spinal cord and brain injuries in an off-duty accident. (Click here to see segment of Discovery Channel documentary of Trevor’s accident.)

During his time with the sheriff’s department, Trevor worked at several different stations; including Robert Presley Detention Center, Southwest Station in Temecula, Hemet/Valle Vista Station, Ben Clark Public Safety Training Center, and Lake Elsinore Station; along with other locations.

Trevor’s assignments included Corrections, Patrol, DUI Enforcement, Boat and Personal Water-Craft based Lake Patrol, Off-Road Vehicle Enforcement, Problem Oriented Policing Team, and Personnel/Background Investigations. He finished his career while working as a Sex Crimes and Child Abuse Investigator and was a court-designated expert in child abuse and child sex-related crimes.

Trevor has been married for more than 29 years and was a foster parent to more than 60 children over 13 years. He is now an adoptive parent and his “fluid family” includes 13 children and 16 grandchildren.