Police and medics responded just before 4 a.m. to the 80 block of North Smithville Road after a man found Smith bleeding on the floor.
“I don’t know if she was stabbed,” the caller told dispatchers. “I heard screaming and there’s blood everywhere.”
The man said that she was still breathing, but panting “real hard.”
He added that he wasn’t sure where she was injured, but that it looked like it was possibly her back shoulder.
When dispatchers asked if the person who stabbed Smith was still on the scene the caller said yes but did not answer questions about the attacker’s identity.
Several people were at the scene when officers arrived, including Humphries, who was taken into custody.
Smith was pronounced dead at the scene.
Montgomery County Coroner Dr. Kent Harshbarger said she died of multiple stab and incised wounds. Her death was ruled a homicide.