Dutz Murret was known around New Orleans as a professional boxer for a time and then as the manager of some fairly successful boxers. He was the father of several sons who excelled in sports – one playing for the St Louis Cardinals baseball team.

His wife, Lillian's sister, Marguerite was Lee Oswald's mother. Because Lee's father died of a heart attack before he was born, his mother struggled to provide a stable life for her three sons. This is why Lee lived with the Murret family for a time.

In addition to his boxing career and day job as a longshoreman, Murret ran an illegal bookmaking operation in association with Sam Saia, part of the Marcello organization.

In 1979 Carlos Marcello admitted that he knew both Murret and Lee Oswald but said little else.