DALLAS (CBS 11 NEWS) – The former Balch Springs police officer accused of murdering 15-year-old Jordan Edwards could face additional charges in an unrelated case.

Monique Arredondo said she was involved in a fender-bender with ex-officer Roy Oliver back in April in Dallas and that Oliver pulled a gun on her after the wreck.

Roy Oliver – former Balch Springs Police (credit: Facebook)

A grand jury is set to hear her testimony, which could result in an aggravated assault charge for Oliver.

“I just see a guy coming up to me and I’m like, I’m about to die,” said Arredondo.

The incident happened on Cockrell Hill Road just south of Kiest Boulevard.

“He already had the gun out. So when he came up, he… pointed it at me and asked for my information,” said Arredondo. She said she refused and told him to put his gun away.

“He was angry. He was real angry,” said Arredondo.

She said Oliver did not identify himself as an officer. “This guy could shoot me at any second, for what? Hitting the back of his truck? That could be fixed.” 

When Dallas police arrived Oliver told them he did in fact identify himself as a police officer and that he had his gun out, but it was in a low position.

Officials with DPD said Oliver told officers at the scene that he feared Arredondo was reaching for a weapon or about to leave the scene. But Arredondo said, “My hand was here, (motions shifter nob), the whole time.”

Whether or not Oliver will be charged is a decision left to a Dallas County grand jury.

As for testifying before that grand jury Arredondo said, “[I’m] nervous because this is my first time doing anything like this. But I mean I’m going to do it for the sake of the family that lost their son.”

Jordan Edwards (credit: Mesquite ISD)

Arredondo said she is sharing her story because of Jordan Edwards. “What if that was my kid? I would want someone to speak up. He can’t speak up.”  

Defense attorney Jim Lane, who represents Oliver, would only confirm Wednesday’s grand jury hearing date and that Oliver would not be attending. Lane expects some sort of decision on Friday.