The brother of the US gunman who killed 59 people at a Las Vegas concert says he has no idea why his brother opened fire, nor that he had a collection of weapons. Correspondent Patrice Howard joins Checkpoint.
To embed this content on your own webpage, cut and paste the following:
<iframe src="https://www.radionz.co.nz/audio/remote-player?id=201860998" width="100%" frameborder="0" height="62px"></iframe>
for easy access to all your favourite programmes