The first detective on the scene of the Easey Street killings says he's enormously relieved the case may have been solved after almost half a century. The arrest of 65-year-old Australian-Greek national Perry Kouroumblis occurred in Rome last Thursday, with his brother saying he was shocked by the news of his arrest and that he wouldn't have waited for more than 40 years to leave Australia if he was guilty.

For more,  Criminal Psychologist Dr Tim Watson-Munro joins.

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