"She didn't even know that she was going to the Philippines until Steve said, 'Marilou, I found you a cheap ticket to the Philippines, '" said one of the sisters, who live near Brisbane.
"We can not even rule out mental illness or some form of brain damage, although there's no evidence of that, either", the official said.
Marilou Danley, the woman whose name was dragged in the shooting incident, initially described as of "Asian descent" was later found to be a Filipina.
"She is a good and gentle person", Waltrip said.
In a statement on Monday, California time, Foreign Secretary Alan Peter Cayetano said the Philippine Consulate General in Los Angeles was monitoring developments after the attack.
News first reported the wire transfer, citing "multiple senior law enforcement officials", and CNN later confirmed it with another official.
In a press release of LVMPD, Sheriff Joe Lombardo said that the department is working to process the crime scene across from the Mandalay Bay Hotel and investigate the motives of the gunman.
Earlier investigators said Paddock had planned the massacre so meticulously that he set up a camera in the peephole of his hotel room in an apparent attempt to spot anyone coming for him. Officials aren't able to see yet the precise date of the transfer and the Federal Bureau of Investigation is now working with Philippine authorities over the matter, the source said. All but three of the dead had been identified by Tuesday afternoon. "We are making arrangements to contact her upon her return".
Although police said they had no other suspects, Clark County Sheriff Joseph Lombardo said investigators wanted to talk with Paddock's girlfriend and live-in companion, Australian Marilou Danley, who he said was travelling overseas, possibly in Tokyo. The couple separated in 1979 before their divorce was finalized in 1980 in Los Angeles County. She described Danley as a "wonderful" person who would never have been involved in such a plot.
"I heard the sound of machine gun shooting on the radio", he said. Donald Judy, who was Paddock's neighbor in Florida from 2013 to 2015, said Paddock told him that he was doing real estate speculation in Southeast Asia. A onetime high-limit hostess for a club within the Atlantis Casino Resort Spa in Reno, Danley posted several photos from Las Vegas gambling tournaments, including one from a stay at Mandalay Bay in 2014.