Hannah told NBC's Savannah Guthrie that once, after a gymnastics meet, she asked DiMaggio if she could bring a male friend to his house, where she and her friends would sometimes play. She said DiMaggio told her "no" because he had a crush on her and didn’t want to see her kissing her friends.
“After that, it just got really awkward around him,” she told Guthrie, saying she tried to keep her distance.
“He would always text me and say that I was rude and I was trying to stay out of his life, and basically I was after that, but I couldn’t because he was my dad’s best friend and he was always there for my mom. So I knew that if I said something she’d be crushed," Hannah said.
But even in the week leading up to the kidnapping -- and the brutal killings of her mother and brother -- DiMaggio seemed fine, Hannah said.
The ordeal began, authorities said, when the 40-year-old DiMaggio lured the Anderson family to his eastern San Diego County home.
Hannah said she realized something was wrong when DiMaggio picked her up from cheer camp on Aug. 3 and didn’t see her mother’s car parked at his house.
“He said, 'Oh, they’re probably next door playing with the kids,' ” Hannah told Guthrie. “That’s when it all went down from there.”
Later, after she was handcuffed and zip-tied on the couch, DiMaggio looked crazy, Hannah said.
“You could tell in his eyes,” she said. “It was just really scary.”
Authorities say DiMaggio killed Hannah's mother and brother, then rigged his house to catch fire. The search for Hannah and DiMaggio, which included a multistate Amber alert, began after firefighters found 44-year-old Christina and 8-year-old Ethan Anderson's bodies in DiMaggio's burning home.
But before they left, Hannah said her abductor wanted her to play Russian roulette at his home, where she said she could hear her brother, gagged, trying to yell upstairs.
"When we got into the house, after he told me the plan, he made me play Russian roulette with him sitting on the couch," she said.
"With a real gun?" Guthrie asked.
"Yeah," Hannah replied. "And when it was my turn, I started crying and like, was freaking out. And he said, 'Do you want to play?' And I said, 'No.' And I started crying and then he's like, 'OK.' And he stopped."
Hannah said DiMaggio drugged her with what she believes were several Ambien pills before leaving his home. When she awoke, Hannah told Guthrie she was in Idaho and had no recollection of what happened.
“I was out sleeping cold that whole time. So I wasn’t awake for any of it,” she said.
When the teen asked where her mother and brother were, DiMaggio told Hannah they were tied up in the house, which was scheduled to ignite at 7 p.m. Hannah said DiMaggio told her he put signs on the garage so firefighters would know to rescue them.
Officials said she did not know they had been killed until after she was rescued.
Hannah told Guthrie she was too scared to try to escape because DiMaggio threatened her. He slept with a gun near his head, Hannah said, but the teen was too afraid to act when he left at night to use the bathroom.
“I could have done something, but then I would think, 'What if I, like, missed?'" she said. “I couldn’t shoot someone so it’s not really a chance.”
DiMaggio also threatened to kill a group of horseback riders -- whose tip would eventually lead to Hannah’s rescue -- if she signaled to them that she needed help, Hannah said.
On the day of her rescue, Hannah said she remembered DiMaggio trying unsuccessfully to start a fire and told him that she'd read that firing a gun three times into the air signals S.O.S. After DiMaggio fired the second time, Hannah said she heard gunshots and he fell to the ground.
“I, like, kind of looked over and was like, ‘Are you OK?’ And, like, then a bunch of, like, the FBI people came out telling me to get down and I was just terrified. I didn’t know what was going on,” she said.
DiMaggio was shot six times in the head, chest and extremities, Valley County coroner Nathan Hess confirmed Tuesday.
For the first time Thursday, Hannah was also reunited on the "Today" show with the four horseback riders who reported seeing DiMaggio and the teenager in a remote stretch of wilderness about 75 miles north of Boise. FBI agents moved into the campsite Aug. 10
The group hugged Hannah and her father one-by-one, calling the girl the "real hero" and a "tough little lady."
Teary-eyed, she thanked them, and they presented her with a cowboy hat from Idaho.