The grand theft occurred at the Oakmont Memorial Park on Reliez Valley Road, where roughly 200 bronze vases that were attached to gravesites have gone missing.
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Oakmont staff noticed the vases were missing, but it was not known exactly when they were stolen, the Sheriff's Office said. A memorial bench was also vandalized.
Anyone who may have information helpful to this case is asked to contact the Sheriff's Office at (925) 313-2600. For any tips, email at tips@so.cccounty.us or call (866) 846-3592 to leave an anonymous voice message.