Kingston Bradley, 18, was arrested after being seen carrying a plastic tub that contained a dismembered human torso.
Shanteria "Tia" Mosely, 26, disappeared while driving for DoorDash.
Her family began tracking her phone when they couldn't reach her.
Their search took them to an apartment complex, where Mosely's car was found.
After calling police to let them know what was going on, the family noticed a man staring at them from an apartment window.
They later saw Bradley apparently trying to dispose of the plastic tub, and flee the area.
Arrest warrants say the apartment smelled like bleach and blood stains and a bloody saw were found inside Bradley's apartment.
He is being held on charges of concealing a death while the investigation continues.
Bradley has an unresolved felony case involving a fight with his father from 2024, according to court records.
The indictment in the 2024 case only happened in February of this year, and he had been out on a $3,500 bond as a juvenile defendant.