'They blackmail us': Domino's boss
![null](/web/20170217130409im_/http://www.smh.com.au/content/dam/images/4/q/n/4/r/image.related.wideLandscape.220x124.4qn4q.png/1487211983229.jpg)
- Video duration
- 01:12
Grant Hackett's father says the former Olympic champion has gone missing and is "very mentally disturbed". Vision: Channel Seven
Save articles for later.
Subscribe for unlimited access to news. Login to save articles.
Return to the homepage by clicking on the site logo.