Robert Louis Grossman was 18 when he left his Boca Raton home on foot after a brief argument with his mother on the evening of August 3, 1997. He departed at about 9:30 p.m. wearing only blue shorts, without a shirt, shoes, money, or identification. His family first thought he might be staying with friends; they reported him missing after two days without contact.

A senior at Spanish River High School who worked part-time as a camp counselor, Grossman was described as bright and responsible with plans to attend college. The family has long suspected foul play after his girlfriend received a phone call claiming his body had been dumped in a canal, but searches of that canal and nearby areas produced no evidence. The Palm Beach County Sheriff’s Office is investigating, and Grossman has never been located.

Does anyone have memories of Robert, knew where he spent time in August 1997, or has information that could help clarify what happened that night?