On August 13, 2023, a deceased male, Richard Dionne, was found at a residence in Yucca Valley. An autopsy later revealed that Dionne was murdered, and Joseph Grayshock was identified as the suspect. Murder charges have been filed against Grayshock, who is currently in custody in Riverside County. Sierra Sun Times reported
November 9, 2023 – The San Bernardino County Sheriff’s Department has released a statement regarding a homicide investigation that took place on Sunday, August 13, 2023, in Yucca Valley. Deputies from the Morongo Basin Station responded to a residence on Warren Vista Drive following a report of a deceased male. The deceased has been identified as Richard Dionne. The Coroner’s Office also arrived at the scene and determined that an autopsy would be necessary to determine the cause and manner of Dionne’s death.
The Sheriff’s Specialized Investigation Division – Homicide Detail was called in to take over the investigation. After conducting the autopsy on August 16, 2023, it was confirmed that Dionne had been murdered. Further investigation by the Homicide Detail led to the identification of the suspect as Joseph Grayshock.
On Tuesday, November 7, 2023, the San Bernardino County District Attorney’s Office filed murder charges against Grayshock. However, he is currently in custody in Riverside County on unrelated charges. Once his case there is completed, he will be transported to San Bernardino County to face the murder charges.
Authorities are urging anyone with information about this case to come forward and contact the Homicide Detail at 909-890-4904. If individuals wish to remain anonymous, they can provide information to the We-Tip Hotline by calling 1-800-78-CRIME (27463) or by visiting www.wetip.com.
For further details on this case, individuals can get in touch with Detective Justin Carty at the Homicide Detail by calling 909-890-4904. The case number for this investigation is DR# 072302521, with the headline number being 2023-088.
In a separate section, the report provides additional information about the incident. It states that the incident took place on November 7, 2023, and is classified as a murder under PC 187. The location of the incident was the 2900 block of Warren Vista Drive in Yucca Valley. The suspect, Joseph Grayshock, is 49 years old and a resident of Thousand Oaks. The victim, Richard Dionne, was 64 years old and a resident of Yucca Valley.
Source: San Bernardino County Sheriff’s Department.