'He's the love of my life'

A Las Vegas bartender held the hand of a young Canadian man as he died and then stayed with him for hours after promising his girlfriend and mother she would not leave his side.

Heather Gooze was being praised for her act of compassion toward a stranger in the midst of the carnage at Sunday night's concert on the Las Vegas Strip.

"I would hope somebody would do it for me," Gooze, 43, told CBS This Morning. "I would hope that they wouldn't let me be alone."

The shooter Stephen Paddock, a 64-year-old gambler and retired accountant, opened fire on the concert goers from a nearby hotel killing 58 people and wounding more than 500. The motive of his act is yet unknown to the police.

His girlfriend Marilou Danley, 62, returned to the United States and was met by FBI agents eager to hear whatever she might know about the motive behind the worst mass shooting in US history.

She was in the Philippines when Paddock opened fire on the Las Vegas strip. Authorities are also investigating reports that while she was in the Philippines, Paddock wired her $100,000.

Gooze said she was working the bar at a VIP tent at the Route 91 Harvest Festival when gunfire erupted. Hundreds of people suddenly came crashing through the bar, which was located near an exit, and she began to assist two wounded men.

One of them was Jordan McIldoon, a 23-year-old apprentice mechanic from Maple Ridge, British Columbia, who was attending the show with his girlfriend, Amber Bereza.

He had been shot in the stomach and separated from his girlfriend in the panic that ensued when the gunman opened fire from the 32nd floor of a nearby hotel.

"His fingers were kind of wrapped on my hand," Gooze told CBS. "His hand kind of squeezed a little bit and then just, like, went loose."

A man who was with Gooze answered McIldoon's phone when it rang and obtained numbers for his girlfriend and his mother.

Gooze spoke to his girlfriend, who was locked down at the Tropicana hotel.

"She said 'Be honest with me, like what's going on?'" Gooze recalled for CBS. "And I said 'He didn't make it.'

She said to me 'He's the love of my life, like, are you sure?'

"I said 'Yes.'"

Gooze promised Bereza she would remain by his side and made the same vow to McIldoon's mother after being put in touch with her. She stayed there for about four hours.

Gooze's Facebook page was inundated with hundreds of tributes on Tuesday from Canadians and others.

"As a Canadian I want to thank you for being there for Jordan. It was the most selfless caring thing anyone could ever do," wrote Megan Nicole Hill of Barrie, Ontario.