"It was extremely difficult," the boy's father told Cho. "My wife started watching for the first few moments and couldn't watch any more, and that's when we went ahead and called the police and got them involved."
The child's father says "video doesn't lie."
The family said Campbell was referred to them through friends and she listed her main employer as a local church.
"This is coming from someone you would've never thought, coming out of this lady. But the video doesn't lie," that father said.
About two months ago, the father said he noticed his youngest child had a black eye, but he assumed it may have been caused by an older brother.
But the father was concerned enough that he decided to install a hidden camera in his house to see what was going on while he was gone.
The first thing he said he noticed on the tape was that she ignored the kids much of the time while she watched television. He said that got him upset enough to fire her that day.
He said he didn't discover the assault until hours later after he put the kids to bed and he watched the rest of the tape.
"Of course I'm angry. That's an understatement," the father told Cho. "If I had known then what I know now, I may be the one sitting in jail at this moment, so it may be good it played out the way it did."
When questioned after her arrest, Campbell admitted her actions "looked bad." She admitted slapping, hitting and throwing things at the boy.
She remains in the Duval County jail on $75,003 bond.
