CHARLOTTE (WTVD) -- Charlotte police are turning up the heat on the boyfriend of a missing teacher with ties to the Triangle.
On Friday, investigators took out a warrant for Angelo Grayson Smith Jr. for contributing to the delinquency of a minor.
Sources told WSOC-TV in Charlotte that the juvenile is Bianca Tanner's three-year-old son. Police say the boy had seen Smith abusing his mother.
Police have not called Smith a suspect in Tanner's disappearance.
The search for the 31-year-old teacher is being called a homicide investigation.
Tanner, who grew up in Raleigh, was moving to Charlotte from Greensboro.
Tanner has been missing since earlier this month.
Click here to read more on the story from WSOC-TV.