Woman Suspected of Running Over Sailor Has History of Violent Threats, Court Documents Say Darla Jackson is charged with murdering a Navy sailor.

 -- The California woman accused of fatally mowing down a US Navy sailor with her car in an apparent road rage incident, has a history of bad driving and making threats against ex-boyfriends, according to court documents.

Darla Jackson is charged with first degree murder for allegedly ramming a motorcycle drive by Chief Petty Officer Zach Buob on May 29, pushing him 300 feet until he fell and then running him over.

Records indicate that two ex-boyfriends filed requests for restraining orders against Jackson, including one who claims she threatened to run him over, according to documents obtained by ABC News affiliate KGTV.

Jackson's attorney Stephen Cline told ABC News that neither of the restraining order agreements became valid.

"Anyone can go in and make such accusations but in order to get a restraining order put in place in any way permanently, you need some kind of evidence and you have to convince a judge," Cline told ABC. "That didn't happen in either instance here."

The first ex detailed how she became upset when he broke up with her in August 2012.

The man said that he received more than 200 calls and 100 texts from Jackson around the time he told her to "leave me alone."

In his restraining order application, handed out at Jackson's hearing this week, he wrote how she "was texting me, saying she was going to kill me, tell my job that I sell drugs, and that she was going to hurt her self [sic] and call the police, saying it was me."

He also said she allegedly became aggressive towards him during a driving dispute in California, according to the document.

He wrote that she started arguing and yelling at him while driving in July 2012 and she let him get out of the car.

When she thought she heard him kick the car, she allegedly said "I'm going to run your b**** a** over with the car."

Then, just a month after she and the first ex reportedly broke up, she and another boyfriend broke up a month later, according to the second application.

The second ex said that cars were also a factor in their fighting, saying that he suspected that she keyed his car in September 2012, the document said.

"She called me at least 72 times on September 1, 2012 and left threatening voicemails stating 'I'm going to damage your property,' 'I'm going to hurt you' also that 'I'm dead' and that I don't know who I'm messing with," the restraining order released in San Diego court stated.

According to ABC affiliate 10News, Jackson's driver's license was suspended for two years because of bad driving and only reinstated this year.

Jackson, who is now 25, was sobbing in court when she entered a not guilty plea in the murder case.

Cline previously said that Buob kicked her car and then the two collided when they ran into traffic.