A Florida couple have been charged with sexual assault and a number of child porn offences after a phone was found in a shopping trolley containing images of the pair abusing a four-year-old girl.
Alan Johnson, 33 and his girlfriend Jennifer Sparks, 37, were charged with sexual battery of a child, promoting sexual performance by a child and child porn possession after the phone was found at a Cape Coral Walmart on June 2, WTSP-TV reports.
Sheriff Mike Scott of Lee County said the girl was "abused in every way imaginable".
"My most seasoned detectives here said that it's the worst they've ever seen," he said.
The person who found the mobile handed it over to police, who recognised Johnson's phone number because he is a registered sex offender.
In 2003 Johnson received a five-year jail sentence for child pornography.
When police raided the couple's Florida home last week they found more child porn and evidence that the pair were producing the pornography on a mobile phone.
The girl who appeared in the video found on the phone was found in another part of the state and has placed under the care of the Florida Department of Children and Families.
Police are investigating the possibility that the four-year-old may have been sold or loaned to other individuals by her parents with knowledge of the abuse she would suffer.