"From this picture, happy -- not a worry in the world, innocent, loved animals -- to this," she said while showing photos of her son flashing gang signs. "A very evil child, teen -- I say child because he's still my child but he was completely different."
Barrett said she raised her son on her own, but decided to allow her son to meet his father for the first time when he was 15.
"It would be good for him to finally meet him and know who he was. That was the worst mistake of my life," explained Barrett.
Barrett said her ex convinced her son to stay with him, and a year later, he would disappear.
"Raising him 16 years on my own, I know my son and this is not like him," she said.
Barrett said her son is not a runaway, and she's now worried something else may have happened to him.
"I don't believe enough is being done. Something is wrong, something is very wrong," she said.