Drakeo the Ruler’s mother is speaking out after her son was fatally stabbed backstage at the Once Upon a Time in L.A. music festival on Saturday night (Dec. 18).

Speaking with Rolling Stone days after the tragedy, Darrylene Corniel vowed to get justice for her son.

“I need this to be out there. I need people to know… and I do want justice for my son. I do believe that justice will be served,” she told the outlet. “I will not rest until justice is served.”

According to Corniel, Drakeo was backstage with his younger brother, rapper Ralfy the Plug, and a few others when they were “swamped” by a large crowd that attacked them.

“They said there were like 40 to 60 people,” she explained. “Everything just happened so quickly. They started trying to jump them.”

Corniel said she has yet to speak with the police who are investigating Drakeo’s killing, but she believes he was targeted due to his rising fame.

“It is such a shame how much jealousy and envy can make people stoop to such low tactics to try to destroy another individual because of fame and progress,” she said. “When you start getting up there, people start getting intimidated. So, I believe once his platform started going higher, people started getting upset.”

Corniel also blames security at the Banc of California and Exposition Park for not protecting her son and said she plans to file a lawsuit.

“They let all these people in and you’re not supposed to have all these people backstage. And your security is supposed to be in place,” she said. “You had more people come in than you were supposed to. And you allowed them to jump my son. You didn’t protect my son… Someone has to be held accountable.”

Tragically, Corniel said she last saw her son through a hospital window as she was not allowed inside. “I wasn’t able to hug him or kiss him or anything like that,” she said. “I had to look at him through a window.”

According to Live Nation, the stabbing occurred “in a roadway backstage” at the venue. As a result of the attack, the festival ended early before Snoop Dogg and 50 Cent’s headlining sets could begin.

Drakeo had just released his mixtape, So Cold I Do Em 2. In the year after he was released from jail, the 28-year-old dropped six projects and multiple singles.