Sunil Tripathi went missing on 16 March and was wrongly implicated by Reddit users in the Boston Marathon bombingsAuthorities in Rhode Island are working to determine whether a body found in Providence Harbor is that of a Brown student missing since March who was mistakenly linked with the Boston bombings last week.Providence police lieutenant Joseph Donnelly was quoted as saying "it's very, very possible" that the body could be that of Sunil Tripathi, 22, who went missing on 16 March.Tripathi was wrongly implicated in the marathon bombings by Reddit users who erroneously claimed he was the suspect wearing a white cap in photos released by the FBI.