This is a possibility brought down in Kabbala. For example, if Reuven dies owing money to Shimon and Shimon does not forgive him both must come back until the mon?? is repaid. See http://www.hebrewbooks.org/pagefeed/hebrewbooks_org_39936_35.pdf.
However, whether this or that individual is suffering because of that is not our concern. We only have the halachic obligation to try to help him.