UCLA doctoral student Mainika Sarkar seems to have been going through several issues before he ended his life. He was married to a Med student in 2011, and the marriage lasted only an year, and he could not hold on to his jobs and was pursuing doctoral studies. Before killing the professor, Sarkar who does seem to be suffering from mental disturbance had first killed his estranged wife in Minnesota, drove 2,500 km to Los Angeles to shoot his adviser before killing self.
Back home, Mainak was known to be a geek, who kept to himself, and was only involved in his studies. He would draw equations on the walls, and was not into sports or socialising. His teachers and classmates called him a simple and bright boy. Even his LinkedIn profile has testimonial from one of his former bosses who called him a steady contributor with solid technical skills. Evidently the alumni of the prestigious IIT-Stanford could only be one of the best, however stress and mental derangement are being considered as the reasons for his terrible aberration.