Daybreak's Lucy Watson speaks to Debra Accomondo - who knew one of the victims of the US shooting.
She told Daybreak: "It's one of those defining moments where you know your world is going to change."
More top news
Cruz said his debut single combined two of his favourite things - singing and Christmas - and all profits will go to charity.
Prince Harry took a break from his normal royal duties to try out brokering multi-million deals as a trader in a charity day.
The President-elect was named Time's person of the year for creating a "Divided States of America".