Did a secret obsession lead a "genius" to murder a Yale grad student?

Kevin Jiang, 26, a Yale graduate student and former Army National Guardsman, was gunned down in New Haven, Connecticut. What appeared to be a road rage incident soon unraveled into a story of obsession and premeditation.

source https://www.cbsnews.com/news/kevin-jiang-yale-murder-qinxuan-pan-mit-genius-secret-obsession-48-hours/