With hands clasped and heads bowed, hundreds of USC students, faculty, staff and university leaders gathered at a memorial Monday for Bosco Tjan, a beloved neuroscience professor who was stabbed to death by a student on Friday, the last day of classes. "Tragically, Bosco died doing what he loved, doing what he believed in -- serving his students and building up a new generation of scholars," USC President C.L. Max Nikias said. "His achievements are real, his influence enduring." The shock of Tjan's death reverberated over the weekend through USC, where he had worked for more than 15 years and was considered a cornerstone of the neuroscience graduate program. He was a co-founder of the university's neuroimaging center, where he served as technical director, led a number of research projects and taught a lab course on functional imaging.

When students enrolled in USC's daunting neuroscience graduate program needed help cracking a tough project, they all went to Bosco Tjan. It didn't hurt that his advice often came with a free cappuccino. Mara Mather, a professor of gerontology and psychology at USC, described Tjan as an affable, caring presence on campus. He always found time to aid students and professors despite a breathless schedule. In many ways, she said, Tjan was the center's heartbeat.

Boštjan Kaluža, PhD, is a researcher in artificial intelligence and machine learning. Boštjan is the chief data scientist at Evolven, a leading IT operations analytics company, focusing on configuration and change management. He works with machine learning, predictive analytics, pattern mining, and anomaly detection to turn data into understandable relevant information and actionable insight. Prior to Evolven, Boštjan served as a senior researcher in the department of intelligent systems at the Jozef Stefan Institute, a leading Slovenian scientific research institution, and led research projects involving pattern and anomaly detection, ubiquitous computing, and multi-agent systems. Boštjan was also a visiting researcher at the University of Southern California, where he studied suspicious and anomalous agent behavior in the context of security applications.