"It was just kinky sex, and that was the extent of it," said Jeff Collins, the only brother of Dennis Ray Collins, who was accused of sexually assaulting the woman before killing himself. "It wasn't like what people are saying -- she was never a captive or being kept in his house against her will.
"My brother was no monster," he added.
The woman was recorded by a surveillance camera last week as she went from house to house in the dead of night, clad only in a T-shirt and with what appeared to be broken restraints on her wrists. The five-day search for her ended when authorities found Dennis Ray Collins, 49, lying dead of a self-inflicted gunshot wound in his house in the same neighborhood.
Click here to read more of the exclusive interview on ABCNews.com.
WATCH: Montgomery Co. Sheriff's Office reveal details after suicide of mystery woman's boyfriend
The woman's face has been blurred in all videos and her identity is being withheld, because officials say she is a victim of domestic violence.
WATCH: How a 'suspicious' shooting led deputies to the woman