The daughter of the man arrested in connection with three fires at the former Lincoln Paper and Tissue Mill is speaking out.

Thursday night, hours after 59-year-old David Parsons was arrested and charged with three counts of arson, his daughter told NEWS CENTER he has been treated in the past for mental health conditions.

"He is sick. He's been sick," Toby Parsons said of her father's condition, "we don't know why he did what he did."

Toby Parsons says her father has checked himself into in-patient behavioral health facilities several times over the last few months. However, she says news of her father's arrest came without warning.

Parsons says David Parsons hadn't given any hints to her about arson nor did he say anything negative about the mill, where he had worked for several years before being laid off in the early 2000's. She added that, like many others who live in Lincoln, her father was unhappy about the mill closing its doors after going bankrupt in 2015.

"He was bummed about it because it was a huge part of his life."

Toby Parsons believes this country has a mental health problem that she hopes will be fixed, but she says she doesn't want to make excuses for why her father may have done what police say he did. Ultimately, Parsons wants people like her father to get the help they truly need.