Varun Batchigari allegedly strangled Julissa Salazar near the University of Arizona, then boarded a flight to India before the FBI had him arrested.
https://www.foxnews.com/us/indian-national-accused-arizona-girlfriends-murder-entered-us-student-visa-federal-sources
https://www.foxnews.com/us/indian-national-accused-arizona-girlfriends-murder-entered-us-student-visa-federal-sources