NORTH FORT MYERS, Florida -- It started out with a cell phone found in a shopping cart, and ended with a couple arrested on charges that they engaged in sexual acts with a 4-year-old girl.
The phone was found in a Cape Coral Walmart earlier this month and turned over to law enforcement. An FBI Innocent Images Task Force agent found child pornography images on the cell phone.
Photo Gallery: Couple arrested for child porn
A detective with the Lee County Sheriff's Office Sexual Predator Unit recognized the phone number as belonging to a man who is listed as a sexual offender.
That man, 33-year-old Alan Johnson, had been convicted on two federal child pornography charges in 2003, and sentenced to 70 months in prison. Johnson had pleaded guilty and didn't appeal his sentence.
A search warrant executed this week at the house Johnson shares with 37-year-old Jennifer Sparks helped detectives find evidence of the two producing child pornography on a cell phone camera, including images and videos of the two engaging in sex acts with a 4-year-old, according to the Lee County Sheriff's Office.
Upon contacting the Polk County Sheriff's Office, detectives were able to find the little girl and turn custody of her over to the Florida Department of Children and Families.
According to their Facebook pages, Johnson and Sparks run a website together that sells sex toys.