Birmingham Police Chief Patrick Smith said in a news conference Tuesday.
Stallworth's attorney, Emory Anthony, said he did not know anything about what's going on . "
Anthony said he does not know anything about the circumstances, the evidence, or the reasoning behind his arrest and he has not spoken to Stallworth yet.
CNN is trying to reach an attorney for Brown.
Police believe the kidnapping was something Stallworth and Brown thought they had an opportunity to take care of the young child, Smith said Tuesday.
Investigation wants to reveal what happened after that, he said.
"It only takes a split second," Smith said in the news conference.
A multi-state amber. "
A to-do amber Alert issued after her disappearance said she may have been abducted by a man in a dark-colored SUV.
Police did not get any information Stallworth and Brown – but were able to secure warrants on unrelated charges.
Stallworth, who was back in police custody Tuesday, which was previously charged with four counts of possession of child pornography and three counts of possession of child pornography with intent to distribute.
Brown remains kidnapping in custody for an unrelated.
Smith said Tuesday there is no connection between the two and Kamille's family.
"This young child has touched a nation," the chief said.
The Surveillance Video
On Friday, they released video they hoped would not help find the child, of two men seen outside the housing complex. Chamomile and another 3-year-old child are also seen in the video, recorded the night she disappeared, according to police chief Patrick Smith.
The video shows one man walking the two children. Later, another man stops and appears to talk to them.
One man has a suspect and the other has had information about the girl's disappearance, police had said.
Her father pleaded for her return
Chamomile, 3 feet tall and 60 pounds, what was last seen waring a pink T-shirt with a Minnie Mouse leopard print design, the Amber Alert had said.
For days, the state and country are left to look for the young girl alive.
"In my heart, I believe that she is alive, and we are ready to bring her back home." said last week.
Crime Stoppers of Metro Alabama offered a $ 20,000 reward to anyone with the information that would help them solve the crime ,
Alabama Gov. Kay Ivey offered a $ 5,000 reward for information on the arrest and conviction of anyone involved in the kidnapping. A private individual put up another $ 1,000.
Her father begged for the girl's return.
"Everybody knows what's going on," Dominic McKinney told CNN affiliate WBMA. We just want the baby back. "
Douglas Wood, Jason Hanna, Dave Alsup, Amanda Watts, Ralph Ellis, Natalie Johnson, and Madeline Holcombe contributed to this report.