Top Hollywood publicist Ronni Chasen was murdered with a gun stolen from a police officer, according to a new report.

The .38-caliber revolver gun was  taken from the officer during a robbery in the San Fernando Valley, according to TheWrap, which cited an anonymous law enforcement official in its story.

As RadarOnline.com has previously reported, Chasen, 64, was shot multiple times on November 16 while driving home along Sunset Boulevard from a premiere party for the film Burlesque.

Two months after Ronni Chasen was mysteriously shot following a movie premiere, final ballistics reports prove that bike-riding marksman Harold Martin Smith murdered the top Hollywood publicist, cops say.

PHOTOS: Celebs Involved In Murder

Beverly Hills Police Chief David Snowden said Chasen's mysterious death on November 16 was not part of a Hollywood-style conspiracy, as many had suggested.

When Harold Smith was approached by authorities as a "person of interest" in the murder of Hollywood publicist Ronni Chasen he turned a gun on himself and committed suicide.

Listen to the shocking 911 call on RadarOnline.com.

After receiving a tip through America's Most Wanted, the Beverly Hills Police Department attempted to serve Smith a search warrant at his Hollywood apartment complex on December 1.

As RadarOnline.com previously reported, BHPD Chief Dave Snowden announced on December 8 that preliminary ballistics tests done on the weapon that was used by Smith to take his own life shows it was the same weapon used in the murder of Chasen.

PHOTOS: Celebs Involved In Murder

Chasen was gunned down execution-style in the early morning of November 16 in Beverly Hills as she drove home from the Burlesque premiere and after-party.

The 64-year-old veteran PR guru was shot five times in the chest before crashing into a light pole and being transported to Cedars-Sinai Medical Center where she was pronounced dead.

PHOTO: Last Picture Of Slain Ronni Chasen

According to neighbors, before his suicide Smith had been bragging that he was behind the Chasen murder and that he was awaiting a $10,000 payout.

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America's Most Wanted Tipster Wanted 'Justice' For Slain Publicist Ronni Chasen

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Before Harold Smith murdered top Hollywood publicist Ronni Chasen, the ex-con forced a woman to lie down on a street before violently stomping on her head and breaking her jaw, RadarOnline.com has exclusively learned.

EXCLUSIVE DOCUMENTS: Read The Complaint Against Harold Smith

The horrific attack took place on January 20, 1998, according to the family of Farah Tehrani, another of Smith's victims, who spoke out in the wake of Chasen's brutal slaying.

Career criminal Harold Smith — who police believe gunned down Hollywood publicist Ronni Chasen in an apparent botched robbery — had a history of car burglaries, RadarOnline.com has exclusively learned.

Smith, the bike riding ex con who committed suicide as cops prepared to storm his low-rent Hollywood apartment, was charged with second degree burglary of Mercedes Benz on December 26, 1992.

PHOTOS: Celebs Involved In Murder

Chasen was shot driving her Mercedes-Benz near the intersection of Whittier Drive and Sunset Boulevard in Beverly Hills, following an after-party for the film Burlesque.

The never-before-released criminal complaint, obtained exclusively by RadarOnline.com, reveals Smith, aka Howard Jones, “willfully and unlawfully enter(ed) a motor vehicle, to wit, a 1974 Mercedes, the property of John Frances Moran, the doors of said motor vehicle being locked with the intent to commit larceny and any felony”.

The Beverly Hills Police Department revealed that the weapon Harold Martin Smith used to take his own life is a preliminary ballistic match to the weapon used to murder Ronni Chasen, a discovery that would not have been possible without an America’s Most Wanted tipster pointing them in the right direction.

PHOTOS: Celebs Involved In Murder

“I did this for one reason and one reason only,” the anonymous tipster wrote in an email to AMW and discovered by RadarOnline.com.

“And that was to get justice for Ronni Chasen, who could never get it for herself.”

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Before his suicide, Harold Smith was a "person of interest" in the murder of Hollywood publicist Ronni Chasen but a well-placed source tells RadarOnline.com that cops are now "99 percent certain he was not connected with her death.

PHOTOS:  Ronni Chasen Crime Scene Photos

"He was something of a nut," the source tells us exclusively.  "He was from New York and was involved in a number of purse snatchings after arriving in Los Angeles."

He was also arrested and spent 30 days in jail last year in nearby Manhattan Beach after he broke into a house and was found to be in possession of marijuana.

The relatively small-time nature of his past crimes plus the facts that Smith didn't own a car, and was openly bragging that he'd killed Chasen and was awaiting his $10,000 payment, are just some of reasons why cops don't believe he was the hit man.

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"At this time it is unknown if this individual [Smith] was involved in the Chasen homicide," the Beverly Hills PD admitted in a statement Friday night.

And on Saturday morning, RadarOnline.com learned that ballistic tests done on the gun Smith used to kill himself indicate it was not the same weapon used to murder Chasen.

As RadarOnline.com has reported, the BHPD now has video of Chasen's car as it hit a light post seconds after she was shot to death on a quiet residential street.  The tape came from a homeowner's security camera.

Chasen was a well-liked and highly-respected in her business.  She was on her way home from the Burlesque premiere when she was shot through the window of her luxury auto.

PHOTO:  Last Picture Of Ronni Chasen, At Burlesque Premiere

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Ronni Chasen Buried In Hollywood

The investigation into the murder of veteran publicist Ronni Chasen got another piece of evidence in the surveillance footage from the home of Robbie Schaeffer. RadarOnline.com has a photo of the camera which caught Chasen’s crash and Robbie’s explanation of what the footage shows.

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“It's basic footage, I mean it's grainy, all it shows is her driving down the street. Surprisingly she was able to drive straight, considering. She drove straight... She even hits the brake consciously it seems like,” Schaeffer, who owns a beauty salon in Studio City called ROB|B OPI Concept Salon, told RadarOnline.com.  The tape is now in the custody of the police.

“She brakes for the stop sign and that's almost all the way. She rolled through, then it gets fuzzy. Our cameras got a weird angle. There were no cars coming northbound...there was no light or interference so the camera caught the car turned sideways when it hit impact.”

Last Photo Of Slain Hollywood Publicist -- At Burlesque Premiere

Schaeffer said he heard the gunshots in the early hours of November 16.  “I was inside my garage. I happened to be up. I heard all 5 gun shots...basically, my buddy Josh was coming home from In-N-Out and he saw the first cop arrive on scene and he saw her slouched over on the wheel.

“Her door was open and somebody was trying to help her...one of the other neighbors. He came in and told me
some old lady crashed into a light pole and I was like, no dude, somebody just got shot.”

While Beverly Hills police continue searching for who killed veteran Hollywood publicist Ronni Chasen, a friend of the industry fixture revealed to RadarOnline.com that she wanted to redo her will within a couple of months of her death on November 16. 

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Martha Smilgis, who knew Chasen since 1980, was also the co-executor of Chasen's will drafted in 1994. In an exclusive interview with RadarOnline.com, she revealed that Chasen wanted to redo the document in September. "She talked about [redo-ing her will] in September. But that doesn't mean she signed a will, that doesn't mean she actually drew it up." According to Smilgis, Chasen planned on "rearranging things" in the document.