Anna Kepner’s younger stepbrother – a “suspect” in her killing – had a twisted obsession with the Florida cheerleader and was once caught climbing on top of her while she slept, according to the father of the slain 18-year-old’s ex-boyfriend.

Kepner’s 16-year-old stepbrother was “obsessed with her” and relentlessly pursued her despite their blended family, Steven Westin told “Inside Edition.”

“She was scared of him because he always carried around a big knife,” the alarmed father told the outlet, which posted a teaser Thursday night ahead of the bombshell interview.

Westin said his son, Joshua, who dated Kepner, once “saw her stepbrother come into the room when she was sleeping and get on top of her.”

“He’s infatuated, attracted to her like crazy. He always wanted to date her,” Westi

See Full Page