Thirty-four-year-old Justin Butterfield is accused of murdering his brother, 38-year-old Gabe Damour, on Thanksgiving morning in Poland, but Butterfield's ex-girlfriend says the man who allegedly committed the crime is not the man she once knew."I don't truly think Justin was responsible for this," said Yaicha Provencher, Butterfield's ex-girlfriend. "I know that his physical body did it but his mind was not there."Provencher says she dated Butterfield from 2010 to 2018. The couple had a child together. "He was really goofy and really funny," Provincher recalled of Butterfield. "He was really good at making people laugh. He was a really good dad to his son."In 2018, Provincher says Butterfield took a turn for the worse after a physician prescribed him Adderall, which she says exacerbated his schizophrenia. "He started getting really paranoid and telling me that cars were following him and he started writing down license plates," Provincher said. "It kind of progressed from there."Provincher says Butterfield's condition worsened even further due to the isolation of the pandemic. "The very first time I started noticing that he was exhibiting signs of hallucinations, I called the police," Provincher said. "I called the police to see if they could bring him to the hospital, and I was flat out told that they didn't believe me and he was fine. They said, 'He's answering what day it is. He's answering his name.'Earlier this year, Butterfield led police on a chase in Bath which Provincher says ended with him submerged in freezing water. Despite what she says were dozens of run-ins with law enforcement and at least five hospital visits over the past year, she says neither law enforcement nor health care workers believed he was a danger to himself or others."The only person I did get to talk to was the case worker at Midcoast hospital," Provincher said, referring to the aftermath of the Bath incident. "She had originally called me and told me that they were going to hold him involuntarily. The next day, I got a phone call, again from the same woman telling me that he was being released. I begged them to keep him and I told that caseworker he's gonna kill somebody, and that's gonna be on you. And she knows who she is. And she said, 'Well, I hope not.' And I said, 'It's gonna happen.'"Provincher says if law enforcement and health care workers had believed the repeated warnings from herself and his friends that the tragedy would have been prevented."What should have happened is he should have stayed in a long-term facility and really showed that he made progression before he was released," Provincher said. "And I do think that those who did not give him what he needed or didn't listen to the people that knew him best and kept him out here in society do need to be held with some sort of accountability." Provincher says she is speaking out to raise awareness about the lack of mental health care for people like Butterfield."I think that we really need to look within ourselves and our system and figure out how we can best serve these types of situations," Provincher said. "Because right now, we're not. And now, me and my kids have the rest of our lives that we have to deal with this."Butterfield is currently being held in Androscoggin County Jail without bail. He is facing charges of murder.