22-year-old Sunil Tripathi, a native of Radnor Township, Pa., was on leave from the Ivy League school, but living in an apartment near campus with several other Brown students.
His family last heard from him around midnight on Friday, March 15, and he was last seen the following morning.
His sister, Sangeeta, says they're hoping businesses with security cameras near where he lived on Angell and Brook Streets turn over footage from that day so they can try to track his movements.
Providence Police are working with police at Brown and the FBI to investigate Tripathi's disappearance.
