When was he hung?
From news report, one would infer the execution was recent, days or weeks, months maybe. No definite date given in the ABC article.
“He was hanged the same week that Tehran executed a group of militants, a year after Iran agreed to a landmark accord to limit uranium enrichment in exchange for the lifting of economic sanctions.”
That would peg the execution at last week.
http://www.middleeasteye.net/news/iran-executes-20-kurdish-militants-1363741922
“The group were hanged on Tuesday. [August 2, 2016]”