A few days later (Feb. 9), Olivia and Rollins went to the Michael's residence and knocked on the door. Mary's mother answered the door.
"Captain Benson? Detective Rollins?" she questioned. "Is something wrong?"
"We'd just like to speak with your daughter, Mary," Amanda assured her.
"Alright," she obliged. "Mary! Please come here!"
Mary came into view.
"What do you want, mom?!" She questioned, irritated.
She saw Olivia and Amanda.
"These women need to talk to you," her mother informed her. Mary walked to the couch. "would you like me to leave the room?"
"No, actually," Olivia answered, "I think it's best for you to stay."
"Alright," Mary's mother answered.
They all sat down.
"Mary," Rollins started, "how do you know Ava Morgenstern?"
"Ava?" Her mother asked. "Mary used to be in her class."
"What do you mean by used to be?" Rollins question.
"Mary was expelled after she caused Ava to get thrown off a horse," she responded. Then her face turned into realization. "Is she the same girl Kevin was arrested for assaulting."
"Yes," Olivia answered the woman.
"Why are you asking Mary about her?" She questioned.
"Mary was harassing Ava in the park yesterday," Olivia informed her, "and she happened to mention that her brother 'ruined her for everyone else'."
Mary looked to the side.
"I never said that," Mary lied. Olivia leaned forward.
"I was there with my son, and I heard you say exactly that," she informed her, "and Ava confirmed it."
"You knew about it?" Mary's mother questioned her daughter.
Mary glared at Olivia.
"She deserved it," she told her.
"Mary!" Her mother exclaimed.
"So, you admit that your brother, Kevin, raped Ava?" Rollins questioned her.
"I'm not admitting anything," Mary told her. "I just think she deserved what she got."
"How, exactly, did Mary cause Ava to be thrown off of a horse, Ms. Michael?" Rollins asked the woman.
"She was taunting her," Ms. Michael said.
"How exactly was she doing that?" Rollins inquired.
"Shut up, mom," Mary ordered her mother.
"According to their classmate, Jason, she told Ava that Auggie didn't love her and that she didn't deserve him," Mary's mother answered. "Ava sped up and her horse was spooked by a snake. Jason claimed that Mary saw the snake and smiled."
"And did you believe him?" Olivia asked.
"Yes," Ms. Michael admitted.
"That's interesting," Rollins observed, looking at Mary, "because that is very similar to something Kevin told Ava while he assaulted her."
"What a coincidence," Mary said snobbishly with a smile.
"Yeah...I don't think it is," Rollins suggested. "Ms. Michael, may we have your permission to search her and Kevin's rooms?"
Mary's mother glanced at her daughter, then back at Olivia and Amanda.
"Yes," she responded. "Up the stairs; first and third door on the right."
"What?!" Mary yelled. "No!"
Mary quickly blocked their way.
"Move out of the way, Mary," Olivia warned the twelve year old.
"Make me," Mary challenged her, angrily.
"Okay," Olivia agreed. She grabbed Mary's wrist, pulled her to the other side of the stairs, and put one handcuff on her wrist then closed the other handcuff around one of the wooden balusters of the staircase.
"Hey!" Mary yelled.
They ignored the young girl and headed up the stairs. Rollins went into Mary's room and Olivia went into Kevin's room.
Rollins looked through dresser drawers, boxes, and the closet; while Liv did the same. Liv was almost at a loss until she noticed an off part of the wall in the back of the closet that was slightly sticking out of the wall. She pulled it out and it was a piece of a brick. She reached inside and pulled out a notebook. She opened it and everything Mary told him to tell Ava was laid out in the pages, as well as the alley she was planned to be assaulted in and the fact that she was walking home alone that week.
"Liv," Amanda called for the Captain. Olivia walked into Mary's room. "Look at this." It was another notebook. It had pictures of Ava with her eyes scratched out and her throat penned across with red, implying slitting her throat. "This girl is a psychopath."
Olivia showed her the notebook she found.
They walked down the stairs.
"Unhandcuff me!" Mary ordered them.
Olivia unhandcuffed her, grabbed her arm, and shoved her, slightly, towards the couch.
"Sit down," she ordered the preteen. Mary glared at her. "NOW!"
Mary sat down. The women went to the coffee table in front of the couch.
"You're quite the artist, Mary," Rollins said, sarcastically, throwing the open notebook in front of her on the coffee table.
"And you and Kevin are quite the masterminds," Olivia said, throwing the other notebook in front of her.
"Mary Michael," Rollins said, "you are under arrest for the conspiracy of and accessory to rape."
She read her the Miranda Rights, and they took her with them.