UPDATE: Renee Burr addressed the crowd saying the support was overwhelming.
"If there is somebody out there, which there is, and they know exactly what happened. I wish they would come forward, because nobody should got through this," Burr said.
The emotional plea came during a brief speech during the 30-minute long vigil outside Mojave High School where her son Taylor Brantley was killed Friday.
Students returned to Mojave High School Monday morning for the first time since a fellow student was shot on campus Friday.
16-year-old Taylor Brantley was killed after school during a fight.
The principal says there is additional police and security on campus, as well as grief counselors for students and staff.
"I love Mojave, our great staff and each of our students," said Principal Antonio Rael. "We will rally through this challenging time together as one school, one community and one family."
After school, the family held a vigil on Monday in honor of Brantley. People have been lighting candles and leaving messages at a makeshift memorial over the weekend and before school Monday.
"I just hope that y'all feel like how his mama feel like that she gotta bury her own baby like I want like what if you was in the same predicament," said sophomore Lexi Marie. "How would you feel like your whole soul just ripped out of your body? You don't know what she's going through right now like that's her whole child she gave birth to she gotta lay him to rest, like that don't make no sense at all."