Joseph Adamo was 56 when he was last seen in Philadelphia in February 2019. He had been living in a tent community beneath the Green Street bridge and is described as having brown hair and brown eyes. Family last saw him when he paid an unexpected visit to his brother in the Manayunk neighborhood; after that encounter there was no further contact.

Joseph was reported missing on June 10, 2019. Living without a permanent address and in a transient community created large gaps in the timeline of his movements, and those gaps—combined with limited leads and little public attention—have made the investigation difficult. Detective Constance Lassiter of the Philadelphia Police Department is assigned to the case.

Anyone who knew Joseph, spent time in the Green Street bridge encampment in early 2019, or saw him after February 2019 is asked to come forward with information that might fill in his last known movements.