Transcript for Las Vegas gunman's relationship with girlfriend has become a focus of investigation
involves the girlfriend, now questioned by the FBI back here in the U.S. What Marilou Danley says when asked if she knew anything. Tonight, ABC news obtaining a check. What they paid cash for in the weeks before. And how the salesperson described the couple. Here's ABC's chief investigative correspondent Brian Ross. Reporter: New insights tonight from an unlikely place about Stephen paddock, the Reno car dealership where he bought this car on August 1st. Paying cash, with this check for $14,411, not a sign of someone with financial problems. Employees here today told us the FBI questioned them about exactly w457d with paddock and his girlfriend, Marilou Danley, when they came to buy the car. She wanted to get a Lexus, but he was like, I'm not going to spend $10,000 more for a car that's got the exact same equipment. Reporter: And when Danley went on a test drive, she told the female salesperson that paddock had saved her from a bad troubled marriage. She said she had a bad relationship prior to him. And how he had, you know, turned her life around. Really helped her out. Reporter: Danley's relationship with paddock has now become a key focus of the investigation. On Wednesday, she told FBI agents paddock was a caring man who showed no sign of violence. And the FBI also wanted to know about the more than $100,000 that paddock wired to the Philippines for Danley, before sending her there just two weeks in advance of the shooting. Her lawyer read her statement. I was grateful, but honestly, I was worried that first, the unexpected trip home and then the money was a way of breaking up with me. Reporter: Four days into the investigation, the FBI says it has ruled out money problems and ruled out any connection to anarchist groups, to anti-government groups, to oversea terror 2k3wr0u7s. And Brian Ross with us live tonight. Four days later, still no motive. As you began to point out right there, you have learned tonight what they have begun to rule out. Reporter: That's right. And they're certain they will find out a motive sooner or later. One thing, Brian, so many people are asking about is this belief he didn't snap in the moment, because there's so many signs now he had been preparing this for some time. Reporter: Exactly. This was well-planned. Two dozen weapons in his hotel suite, half of them concerted to be fully automatic, as well as the cameras, including the one in that room service cart outside his room, placed to give him early warning about anyone coming to stop him, David. Still trying to figure out that motive. Brian Ross tonight, thank you.
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