Adam Manion, 50, died at his home in York Crescent on April 4, of natural causes.
A fresh appeal has been issued today after police established that Mr Manion had also been known as Tony Oughton.
Mr Oughton worked in a casino in Bradford about 20 years ago.
He was known to have had a brother.
Anyone with information is asked to call Coroners Officer Jayne Dawson on 01274 373754.