The owner and head instructor of a Melbourne boxing gym has been temporarily suspended by Boxing Victoria pending further investigation after the governing body learned that neo-Nazi leader Thomas Sewell was training at the facility.Sewell's organisation, National Socialist Network, was formally listed as a hate group by the federal government last month.Neo-Nazi leader Thomas Sewell broadcasting hate on InstagramABC NEWS Verify can reveal that Neo-Nazi leader Thomas Sewell has been uploading antisemitic and homophobic diatribes to Instagram from a property on the outskirts of Melbourne.ABC NEWS Verify informed Boxing Victoria of the convicted criminal's presence at the Club Titans gym...