Transcript for Ex-wife of Arizona killing-spree suspect says she lived in fear for her life
I knew that one day we would be in a situation where he was trying to kill me. And I felt I had a personal terrorist. Reporter: When her ex-husband, Dwight Jones, couldn't reach her, he would terrorize the city of Phoenix. This is a chilling situation. Police say he killed six people in five days. What drove the shooter to do this? Reporter: Dwight Jones would murder six people in four separate shootings, most of the victims people associated with his divorce from Dr. Connie Jones, a successful radiologist. She was married to Dwight Jones for over 20 years. And she details the decades-long personal hell her ex-husband put her and their young son through. Much of his threatening was that if I left him, that he would kill me. He also threatened to take our child. He said he would take him to Mexico and I would never see him again. And he also considered murder/suicide of all three of us. Reporter: Before and after their contentious divorce, her divorce attorney tells us he threatened her. It wasn't just, you know, "I'll leave you" threats. It's, "I'll put a gun to your head, they're going to find you at the bottom of the pool." The bottom of the pool was a big thing for him. I really have been on high alert for the last nine years. I expected that he would target me. Reporter: Living in a constant state of fear, her attorney, Elizabeth Feldman, hired Richard Anglin to be Connie's private investigator and bodyguard. He'd later become her husband, taking extreme measures to protect Jones and her child. We had three safehouses, countless rental cars. We had attack-trained dogs that were 24-hour security. Dwight Jones repeatedly tried to get through our security but he was never able to gain access to the family. It wasn't because he didn't try. Reporter: The security, while elaborate, ultimately proving necessary. Jones finally snapped, killing those six people before turning the gun on himself. We feel great sorrow for the families and for the victims. Six innocent people who were killed at the hand of a maniac. Reporter: It was two weeks ago when the terror began. Witnesses say they heard Dr. Steven Pitt, a world-renowned forensic psychiatrist, arguing with someone outside his Phoenix office. Gunshots soon ringing out. The 59-year-old left dead on the ground. Less than 24 hours later, police respond to 911 calls at a Scottsdale law office where two paralegals had been shot. One of the women managing to crawl outside to this bus, begging the driver to call 911. She is bleeding from her face, she said she thought she may be dying. Reporter: Dying at the hospital soon after. Authorities followed her trail of blood, leading them inside the office where they found Lauren Anderson, who was pronounced dead on the scene. And again, a day after that, psychologist and hypno therapist Marshall Levine was found dead from two gunshot wounds inside his Scottsdale office, officials say he was collateral damage, a therapist who shared another office with Karen Colby, who counseled Jones' son, and didn't realize she was a target. You do wonder, this a disgruntled client that was looking for me? I doubt it but it could be. Reporter: By the time Colby sat down for an interview with me yesterday, she says her connection to the shooter had become painfully clear. In what way was this case unusual? This case was by far the most fraught with potential for violence as anything I've ever worked on, ever. If on the first night that the police came to me, if they had asked me about my clients, I would have told them this name. Instantly. Reporter: And it was amidst that murder spree that the intended targets, who survived, began to point police towards Jones. Largely because his propensity to violence was no secret. What other ways would he threaten her? He injured her several times. I recall she had really good records, in fact old records. He broke her sternum. Oh my god. Or fractured her sternum -- Reporter: The couple divorced in 2009 and court records show that Dwight Jones had been charged with assault days earlier. He pleaded guilty to disorderly conduct. Records also show that his wife, Connie, sought orders of protection and psychiatric evaluations for Dwight Jones. The psychiatrist ordered to conduct those court-ordered evaluations? Dr. Pitt, the first man Jones killed. We have been able to tie the -- or basically determine that the shooting on first street is related to the shooting of Dr. Steven Pitt. Reporter: But that's not the only connection. Those two parallels Jones gunned down, they worked at Feldman's office with a target on her back, she went into hiding. The police suggested that I not go home. And I made sure that my daughter wasn't home. We stayed away from the home until Monday. Reporter: By Sunday, Connie Jones and her lawyer both had called in tips to police identifying Jones as the likely suspect. And I said, hey, I just learned this connection. And they said, yes. And I said, you guys have to go talk to him if you haven't. I'm not telling you what to do, how to do it, when to do it, but -- and they said, well, where do you think he is? I go, same extended stay, but Rick would know for sure. Nine years in the same hotel room? Reporter: Sure enough, that's where police find him, making their move on him Monday morning. S.W.A.T. Teams swarmed, the suspect opened fire. We have the hotel locked down and there's been shots fired. Reporter: When they found Jones, he had apparently committed suicide. Feldman recalls there were red flags everywhere, and that the killing spree came as no surprise. After the divorce was concluded did you ever wonder if you would read that Dr. Connie Jones has been killed by her husband? It would not have surprised me. She knew that no matter what, no matter what order of protection, no matter what he would be after her and if he really wanted her, he would eventually get her. Reporter: And experts point to the often intertwined and troubling link between domestic violence and gun violence. There are a laws all across the country that protect domestic violence victims in the event that their perpetrator has access to weapons. In my experience, those laws aren't always upheld in ways that they should be. Reporter: Connie and her husband are now speaking out saying more could have, should have, been done to prevent her ex's killing spree. I think certainly if they had not pled him down to disorderly conduct, he would have had a more significant claim on his record. And then he would not have been able to carry a gun. I think that we could do a much better job listening to all survivors, women, men, when they say that they're being abused, and making sure that we're not only taking them seriously, but that we're providing them safe spaces and avenues and resources to protect themselves. Reporter: Tonight, Dr. Jones has a message for those in abusive relationships. I can sum it up with a quote by Maya Angelou. She says that when someone shows you who they are, believe them. This is not something that someone could change, because someone who truly loves you would not do that. And again, I think many times because of the persistence of the abuser and the fact that they're sorry, they didn't mean it, they're never going to do it again, it's not going to stop. It's going to get worse. Reporter: For "Nightline," I'm Matt Gutman in Scottsdale, Arizona.
This transcript has been automatically generated and may not be 100% accurate.