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Authorities say that Melodee Buzzard was seen as recently as Oct. 7, but that her mother is not cooperating with the investigation, which has expanded as far as Nebraska as their search continues.
Police say that the burglars cut through the roof of a vacant business next door to the jewelry store before tunneling into the safe room and taking cash and jewelry.
A 57-year-old Arleta man was killed in the crash near Arleta Avenue and Wentworth Street, according to LAPD investigators.
A patrol vehicle was struck by shrapnel from an artillery round that was fired during Saturday's event at Camp Pendleton, officials said.
Anaheim police said that he was found safely in Buena Park.
The shooting happened on Friday afternoon, marking the third deadly shooting to happen in Hawthorne in the span of a week.
The robbery happened in Perris on August 22 at around 5:30 p.m., according to the Riverside County Sheriff's Office.
The crash happened at around 9:20 a.m. on Friday morning at the intersection of Chandler Boulevard and Van Nuys Boulevard, police said.
Police say that the victim and suspect knew each other, but have not yet provided a motive for the deadly shooting.
Three people were behind bars on Friday for a shooting that left a 25-year-old man dead in North Hollywood the day prior, Los Angeles Police Department officers said.
An off-duty Riverside County Sheriff's Department lieutenant was shot and killed during a hunting accident in Idaho last weekend, department officials said on Thursday.
Authorities are investigating the second deadly shooting to happen in Hawthorne this week, after one man was killed and another wounded on Wednesday morning.
The crash happened at around 3:15 a.m. on May 28 near 20th Street and Hoover Street, LAPD detectives said.
Police say that the man and woman were in a romantic relationship before the shooting.
A New York man was arrested in Southern California over the weekend for allegedly kidnapping a North Carolina woman and bringing her on a cross-country crime spree, authorities said on Monday.