The people over at The International Consortium of Investigative Journalists have updated the released panama data. Its not clear to me if that is more data than they had already released, or that this time it is a ready made Neo4J database. They provide two versions of the database, Windows and Mac. Its easy to get it to work in Linux, just copy the graph.db file from out of the archive into the databases directory of your Neo4J install.
I made a quick query to look for officers with the same address. Seems there some, it would need something more sophisticated to did any deeper.
MATCH (n:Officer)–(a:Address)–(m:Officer) RETURN n,a,m LIMIT 25