Published: Feb 22, 2011 12:42 AM EST
Updated: Feb 21, 2011 9:36 PM EST

FORT LAUDERDALE, Fla. (AP) - Documents show a Miami man who is accused of putting a toxic chemical on his 10-year-old twins faced a sexual abuse allegation in 2005.

According to records released Monday, the girl told her psychologist that her father, Jorge Barahona, was touching her when she was his foster daughter. She was later adopted by Barahona.

The Department of Children and Families investigated the claim and the girl and her father denied it. Investigators closed the case.

A week ago, the boy was found critically injured in the front seat of his father's pesticide truck. The girl was discovered dead in the truck's bed.

Barahona has pleaded not guilty to attempted first-degree murder and aggravated child abuse.