The family of former YouTube CEO Susan Wojcicki has suffered a tragic loss.

The businesswoman's son Marco Troper was found dead at the University of California, Berkeley Feb. 13. He was 19.

A university spokesperson told NBC News that a student who lived in a student housing complex was found unresponsive that day and that first responders from the Berkeley Fire Department attempted live-saving measures before pronouncing him dead. There were no signs of foul play and that an investigation into the death was underway, the spokesperson added.

Marco's grandmother Esther Wojcicki confirmed the student's identity. "Tragedy hit my family yesterday My beloved grandson Marco Troper, age 19 passed away yesterday," she wrote on Facebook Feb. 14. "Our family is devastated beyond comprehension."

Marco, she said, "was the most kind, loving, smart, fun and beautiful human being" who had just begun his second semester of his freshman year at UC Berkeley. She said he majored in math and "was truly loving it."