Javen Jovero, 22, filled a plastic bottle with rubbing alcohol and a sock before throwing it out of his dorm room window at Columbia University’s East Campus on Morningside Drive near W.

Javen Jovero, a 22-year-old senior at the Ivy League college, sparked a panic when he filled a plastic bottle with rubbing alcohol and a sock and hurled it from a dormitory on the school’s East ...