Investigators are reviewing videos and security footage from the Once Upon a Time in L.A. music festival in their ongoing search for Drakeo the Ruler’s killer, KTLA 5 reports. No arrests have been made in the Los Angeles rapper’s stabbing death and on Sunday (Dec. 19), officer Luis Garcia told The L.A. Times, “Detectives are still trying to figure things out.”

Authorities have released few details about Drakeo’s death and their ongoing investigation. However, a person with direct knowledge of the crime reportedly told The Times that Drakeo was attacked by a group of people, a fact that his mother Darrylene Corniel corroborated in her interview with Rolling Stone.

Police have already reviewed several videos taken in the aftermath of the stabbing, though it’s currently unclear if there were any videos recorded during the attack.

As reported by REVOLT, Drakeo was fatally stabbed on Saturday night (Dec. 18) while backstage at the Los Angeles music festival, which he was set to perform at. The rapper’s mother said he was backstage with his brother, Ralfy the Plug, and a few others when they were “swamped” by a crowd of about “40 to 60 people” who tried “to jump them.” Corniel said she believes jealous is why the attackers targeted Drakeo and blamed venue security for not better protecting her son.

The California Highway Patrol is handling the investigation into his death and previously confirmed he was “severely injured by a suspect with an edged weapon” after a fight broke out backstage. They have asked anyone with information about the attack to contact the Southern Division Investigative Services Unit at (323) 644-9550.

Live Nation issued a statement shortly after the stabbing.

“There was an altercation in the roadway backstage,” it read. “Out of respect for those involved and in coordination with local authorities, artists and organizers decided not to move forward with remaining sets so the festival was ended an hour early.”