A California man has been accused of killing his mother and uncle during a Zoom call. Los Angeles County District Attorney George Gascón  wrote in a press release, “This is a horrific case… in which the mother’s work colleagues witnessed part of the attack while on a Zoom call and called the authorities.”

Robert Anderson Cotton allegedly stabbed 67-year-old Carol Brown and 69-year-old Kenneth Wayne Preston to death last Monday. Anderson has been charged with two counts of murder with an allegation of using a knife as his weapon. Brown worked for Pasadena City College, where she had worked for more than 14 years as the co-coordinator of the college’s Black STEM program.

Colleagues and students told KCAL her death will leave a “gaping hole.”

“So many memories about Carol and the amazing work that she did with so many of our students and the incredible spirit she had that was so positive, uplifting and helpful,” Dr. Cynthia Olivo, vice president of student services told the news station. Cotton allegedly stabbed his uncle first and then attacked his mother. As of now, there has been no motive disclosed for the brutal murders. A former student of Brown’s who works for Pasadena City College now.

“I honestly feel so heartbroken, I feel so sad,” Dionne Shelter said. “When you don’t care where someone comes from, what they look like, what they might smell like or whatever, and you still treat them like they are the same as you, a doctor with a Ph.D. or whatever, it’s amazing.”

The 32-year-old is currently being held at Twin Towers Correctional Facility and is set to appear in court on Thursday.

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